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MCQOPTIONS
This section includes 330 Mcqs, each offering curated multiple-choice questions to sharpen your Grade8 knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
By simplifying [(16x6 y5 )²) ⁄(2x²y²)4 ] x [x5 y³ ⁄x³y², the answer will be |
| A. | 16x4 y² |
| B. | 16x5 y³ |
| C. | 16x6 y³ |
| D. | 16x7 y5 |
| Answer» D. 16x7 y5 | |
| 102. |
By solving the following (2³)4, the answer will be |
| A. | 27 |
| B. | 212 |
| C. | 2 |
| D. | 28 |
| Answer» C. 2 | |
| 103. |
The answer of 69.6 in standard form is |
| A. | 6.96 x 10² |
| B. | 6.96 x 101 |
| C. | 6.96 x 10³ |
| D. | 6.96 x 10-2 |
| Answer» C. 6.96 x 10³ | |
| 104. |
By simplifying the a3⁄4 ⁄a1⁄2 x a1⁄3, the answer will be |
| A. | a7⁄13 |
| B. | a5⁄11 |
| C. | a7⁄12 |
| D. | a9⁄11 |
| Answer» D. a9⁄11 | |
| 105. |
By solving 4(x - y)6 ⁄2(x - y), the answer will be |
| A. | 2(x - y)³ |
| B. | 2(x - y)7 |
| C. | 2(x - y)6 |
| D. | 2(x - y)5 |
| Answer» E. | |
| 106. |
Consider a right angle triangle ABC, if AB = x, BC = 15, AC = y and angle of A is 47° then the values of x and y respectively are |
| A. | 15.08 |
| B. | 16.08 |
| C. | 17.08 |
| D. | 18.08 |
| Answer» C. 17.08 | |
| 107. |
The sum of cos 45° and tan 38° is |
| A. | 0.4884 |
| B. | 2.8484 |
| C. | 1.4884 |
| D. | 3.4884 |
| Answer» D. 3.4884 | |
| 108. |
In a right angle triangle ABC, if AB = x, BC = y, AC = 19 and angle of A is 32.4° then the values of x and y respectively are |
| A. | 16.04, 10.17 |
| B. | 14.04, 11.17 |
| C. | 9.04, 12.17 |
| D. | 13.04, 13.17 |
| Answer» B. 14.04, 11.17 | |
| 109. |
If XY = 16 and XZ = 45.2 then the angle of X and Z respectively are |
| A. | 20.73°, 69.27° |
| B. | 41°, 69° |
| C. | 73°, 27° |
| D. | 20°, 27° |
| Answer» B. 41°, 69° | |
| 110. |
If a right angle triangle ABC has 13 as opposite side and hypotenuse is supposed as 'x' then A 47° is |
| A. | 15.77 |
| B. | 17.77 |
| C. | 19.77 |
| D. | 21.77 |
| Answer» C. 19.77 | |
| 111. |
The product of q³ and q² is equal to |
| A. | q |
| B. | q5 |
| C. | q7 |
| D. | q6 |
| Answer» E. | |
| 112. |
By expressing the answer in form of 10n, the answer of 106 x 10-3 ⁄10-5 is |
| A. | 106 |
| B. | 105 |
| C. | 107 |
| D. | 108 |
| Answer» E. | |
| 113. |
The answer of (7.2 x 1016 )/(3.4 x 1018 ) in standard form is |
| A. | 2.12 x 10-2 |
| B. | 2.12 x 10-2 |
| C. | 2.12 x 10-2 |
| D. | 2.12 x 10-2 |
| Answer» D. 2.12 x 10-2 | |
| 114. |
By simplifying (3xy³)³, the answer will be |
| A. | 18x³y8 |
| B. | 24x5 y8 |
| C. | 27x4 y6 |
| D. | 27x³y9 |
| Answer» E. | |
| 115. |
By simplifying the a³b5⁄6 ⁄a1⁄2 b2⁄3, the answer will be |
| A. | a2⁄5 b1⁄4 |
| B. | a1⁄2 b1⁄5 |
| C. | a2⁄3 b5⁄6 |
| D. | a5⁄2 b1⁄6 |
| Answer» E. | |
| 116. |
If cos 55° and sin 55° = 0.8 each then the answer of 3 cos 125° + 5 sin 125° is |
| A. | 1.6 |
| B. | 2.5 |
| C. | 2.3 |
| D. | 0.6 |
| Answer» B. 2.5 | |
| 117. |
For any acute angle, cosine A is equal to |
| A. | −cos (180° - A) |
| B. | cos (180° - A) |
| C. | −cos (180° + A) |
| D. | cos (180° + A) |
| Answer» B. cos (180° - A) | |
| 118. |
By expressing the cos 82° in terms of trigonometrical ratios, the answer will be |
| A. | − cos 89° = -0.2319 |
| B. | − cos 29° = -0.8746 |
| C. | − cos 38° = -0.7880 |
| D. | − cos 98° = -0.1392 |
| Answer» E. | |
| 119. |
In the triangle ABC, if angle B = 60°, b = 11 cm and c = 8.7 cm then angle A and length of 'a' is |
| A. | 52° |
| B. | 43.23° |
| C. | 46° |
| D. | 49° |
| Answer» C. 46° | |
| 120. |
If a = 16.5 cm, angle B = 52° and c = 10 cm then the area of Δ ABC is |
| A. | 72.01 cm² |
| B. | 83.01 cm² |
| C. | 52.03 cm² |
| D. | 65.01 cm² |
| Answer» E. | |
| 121. |
The ladder leans against the wall at point B and makes an angles of 57° with the ground. If the height of the ladder is 8 m then the height of point B from the ground is |
| A. | 6.71 m |
| B. | 8.71 m |
| C. | 9.71 m |
| D. | 10.71 m |
| Answer» B. 8.71 m | |
| 122. |
With respect to A in a right-angled triangle ABC, the side AC which is opposite to the right-angle is called |
| A. | opposite side |
| B. | hypotenuse |
| C. | adjacent side + opposite side |
| D. | adjacent side |
| Answer» C. adjacent side + opposite side | |
| 123. |
The two trigonometrical ratios whose values cannot be greater than 1 are |
| A. | sine and cosine |
| B. | sine and tangent |
| C. | tangent and cosine |
| D. | all of above |
| Answer» B. sine and tangent | |
| 124. |
The ladder leans against the wall at point B and makes an angles of 67° with the ground. If the height of the ladder is 10 m then the distance from the wall to the foot of ladder is |
| A. | 2.91 m |
| B. | 5.91 m |
| C. | 4.91 m |
| D. | 3.91 m |
| Answer» E. | |
| 125. |
In a right angle triangle ABC, if BC is 8.7 and AC is 18.9 then the value of angle A is |
| A. | 40.85° |
| B. | 64.86° |
| C. | 27.40° |
| D. | 32.40° |
| Answer» D. 32.40° | |
| 126. |
If the sine is 0.896 then the value of acute angle is |
| A. | 78° |
| B. | 72° |
| C. | 63.64° |
| D. | 65° |
| Answer» D. 65° | |
| 127. |
The Cosine Rule is also known as |
| A. | Sine triangle |
| B. | Cosine Formula |
| C. | Cosine Triangle |
| D. | Cosine Area |
| Answer» C. Cosine Triangle | |
| 128. |
For the Cosine Rule of any triangle ABC, the a² is equal to |
| A. | b² + c² - 2bc cos A |
| B. | b² + a² - 2ac cos A |
| C. | b³ + c³ - 2bc cos B |
| D. | b² - c² + 3bc cos C |
| Answer» B. b² + a² - 2ac cos A | |
| 129. |
By expressing the cos 113° in terms of trigonometrical ratios, the answer will be |
| A. | − cos 76° = -0.7093 |
| B. | − cos 65° = -0.4258 |
| C. | − cos 67° = -0.3907 |
| D. | − cos 62° = -0.8520 |
| Answer» D. − cos 62° = -0.8520 | |
| 130. |
By expressing the sin 125° in terms of trigonometrical ratios, the answer will be |
| A. | sin 65° = 0.9128 |
| B. | sin 55° = 0.8192 |
| C. | sin 70° = 0.5384 |
| D. | sin 72° = 0.1982 |
| Answer» C. sin 70° = 0.5384 | |
| 131. |
By solving the inequality 1⁄3(x + 4) > (6 - 2x), the answer will be |
| A. | x < 12⁄5 |
| B. | x < 11⁄5 |
| C. | x < 13⁄5 |
| D. | x < 14⁄5 |
| Answer» E. | |
| 132. |
If a < b and b < 0 then |
| A. | a is less than equal to 0 |
| B. | a is greater than equal to 0 |
| C. | a = b |
| D. | both a and b |
| Answer» B. a is greater than equal to 0 | |
| 133. |
By solving the inequality a - 7 < 5 - 3a, the answer will be |
| A. | a < 3 |
| B. | a < 5 |
| C. | a < 6 |
| D. | a < 7 |
| Answer» B. a < 5 | |
| 134. |
If x > y and y > z then |
| A. | x > z |
| B. | x < z |
| C. | x = 0 |
| D. | y = 0 |
| Answer» B. x < z | |
| 135. |
By solving the inequality 1⁄2(4x + 2) > 1⁄3(x + 2), the answer will be |
| A. | x > -1⁄5 |
| B. | x > -1⁄7 |
| C. | x > -2⁄5 |
| D. | x > -2⁄9 |
| Answer» B. x > -1⁄7 | |
| 136. |
The line which is perpendicular to the line passing through intersection point is called |
| A. | triangular |
| B. | normal |
| C. | trigonometrical |
| D. | angular |
| Answer» C. trigonometrical | |
| 137. |
If a = 9.7 cm, angle B = 64° and c = 8.8 cm then the area of Δ ABC is |
| A. | 38.36 cm² |
| B. | 42.36 cm² |
| C. | 25 cm² |
| D. | 24.35 cm² |
| Answer» B. 42.36 cm² | |
| 138. |
For any acute angle, sine A is equal to |
| A. | sin (180° - A) |
| B. | sin (90° - A) |
| C. | sin (180° + A) |
| D. | sin (2A - 180°) |
| Answer» B. sin (90° - A) | |
| 139. |
If the cosine is 0.8 then the value of acute angle is |
| A. | 52.57° |
| B. | 36.87° |
| C. | 45° |
| D. | 47.23° |
| Answer» C. 45° | |
| 140. |
The number of dimensions a line can have is |
| A. | zero |
| B. | infinite |
| C. | one |
| D. | negative |
| Answer» D. negative | |
| 141. |
By simplifying (3x5 y6 )4 ⁄(3x4 y6 )³, the answer will be |
| A. | 3x8 y6 |
| B. | 3x5 y7 |
| C. | 3x9 y5 |
| D. | 3x10 y4 |
| Answer» B. 3x5 y7 | |
| 142. |
The product of p³q4 and p5 q5 is |
| A. | p8 q9 |
| B. | p7 q6 |
| C. | p²q |
| D. | pq9 |
| Answer» B. p7 q6 | |
| 143. |
The answer of following (a³b)4 is |
| A. | a14 b5 |
| B. | a8 b4 |
| C. | a12 b4 |
| D. | a10 b³ |
| Answer» D. a10 b³ | |
| 144. |
The answer of 0.000045 in standard form is |
| A. | 4.5 x 10-6 ` |
| B. | 4.5 x 10-7 ` |
| C. | 4.5 x 10-5 ` |
| D. | 4.5 x 10-4 ` |
| Answer» D. 4.5 x 10-4 ` | |
| 145. |
The answer of 0.495 in standard form is |
| A. | 4.95 x 10-2 |
| B. | 4.95 x 10-3 |
| C. | 4.95 x 10-4 |
| D. | 4.95 x 10-1 |
| Answer» E. | |
| 146. |
The formula for the area of a triangle is |
| A. | 1/height x base |
| B. | height x base |
| C. | 1/2 x base x height |
| D. | 1/base x height |
| Answer» D. 1/base x height | |
| 147. |
Considering 0° < x < 180°, the angle of cos x = -0.8726 is |
| A. | 167.35° |
| B. | 165.82° |
| C. | 160.72° |
| D. | 150.76° |
| Answer» E. | |
| 148. |
The dimensions of solid includes |
| A. | length |
| B. | breadth |
| C. | height |
| D. | all of above |
| Answer» E. | |
| 149. |
If the sine is 0.2586 then the value of acute angle is |
| A. | 14.99° |
| B. | 16° |
| C. | 18° |
| D. | 17.98° |
| Answer» B. 16° | |
| 150. |
Considering the Cosine rule, the b² + c² - a²⁄2bc is equal to |
| A. | cos D |
| B. | cos C |
| C. | cos B |
| D. | cos A |
| Answer» E. | |