The area of a circle is A. Find its circumference.

1.	The area of a circle is A. Find its circumference.
A.	\[2\pi A\]
B.	\[2\sqrt{\pi A}\]
C.	\[2\sqrt{\frac{A}{\pi }}\]
D.	\[2\sqrt{\frac{\pi }{A}}\]
Answer» C. \[2\sqrt{\frac{A}{\pi }}\]

Discussion

No Comment Found

Related MCQs

In the following letters stand for numbers. Work out the answer to each sum, find its letter and identify the correct option. If V=4 , W=5, X=11, Y=18, and Z=10 then\[\text{Z }\div \text{ W }\!\!\times\!\!\text{ X - Y = }\!\![\!\!\text{ ? }\!\!]\!\!\text{ }\]
A number is multiplied by 4 and 5 is added to the product. If this sum is divided by 11, the result is equal to 7. Find the number.
The given figure shows an isosceles triangle PQR in which \[PQ=\frac{3}{4}x\]And\[PR=12cm\]. Find the value of x.
Given \[6x-7=3-4x,\] find the value of\[10x-10\].
In the following letters stand for numbers. Work out the answer to each sum, find its letter and identify the correct option. If P = 7, Q = 11, R = 14, S = 22, and T = 24, then what is \[\text{Q}\times \text{R}\div \text{P-Q}\]?
Directions: With this type of questions you are given a number equation (number sentence) with a number missing. Both sides of the equation need to have the same value. You are required to find the missing number that will balance the equation. \[\text{9 }\!\!\times\!\!\text{ 9 + 9 = 10 }\!\!\times\!\!\text{ 10 - }\!\![\!\!\text{ ? }\!\!]\!\!\text{ }\]
In the following series one term is missing. Select the option which completes the series. 2, 3, 6,15, 42,?
Select one alternative out of the five alternatives to complete the series given below. AZ, GT, MN, ?, YB
Find the missing term in the following series from the given alternatives ZTW, YSV, XRU, ?
What sum will amount to \[\text{Rs}.\] 1199 in 3 years at \[12\frac{1}{2}%\] per annum simple interest?

The area of a circle is A. Find its circumference.

Discussion

No Comment Found

Related MCQs

Reply to Comment