Find the total surface area (in cm2) of a hemisphere of diameter 21 cm – McqOptions

MCQOPTIONS

1.	Find the total surface area (in cm2) of a hemisphere of diameter 21 cm.
A.	1039.5
B.	844.5
C.	637
D.	472
Answer» B. 844.5

Discussion

No Comment Found

Related MCQs

How many cubes of 25 cm edge can be put in a cubical box of 1 m edge?
A solid right circular cone of height 27 cm is cut into pieces along a plane parallel to its base at a height of 18 cm from the base. If the difference in volume of the two pieces is 225 cc, the volume, in cc, of the original cone is
A rectangular field of length 242 m has an area of 4840 m2. What will be the cost of fencing if the cost of fencing is 50 paise/meter?
If height of a cylinder is 50 cm and radius is 14 cm, what is the volume of it?
If the measure of the sides of a cuboid are 8 cm, 6 cm and 10 cm, then the volume (in cm3) of the cuboid is:
A and B are two cones. The curved surface area of A is twice that of B. The slant height of B is twice that of A. What is the ratio of radii of A to B?
Height of a right circular cone is 8 cm. If diameter of its base is 12 cm, then what will be the curved surface area of the cone?
A semicircle is inscribed inside a rectangle in such a way, so that the diameter of the semicircle coincides with the length of the rectangle. If the area of the semicircle is 50 π, then what is the area of the rectangle?
A cloth of 3 m width is used to make a conical tent 12 m in diameter with a slant height of 7 m. What is the length of the cloth? (Take π = 22/7)
If the area of a square is 16 cm2, then the area of the square obtained by joining the mid-points of its sides in order is -