Question

What is a reasonable estimate for the area of a circle with radius 4 cm?

12 cm2
16 cm2
24 cm2
48 cm2

Answer 1

r = 4cm
Area = πr^2
= 22/7 * 4^2 cm^2
= 352/7 cm^2
= 50.29 cm^2
Therefore, Answer is D. A =48 cm^2

Answer 2

\[A=\pi r ^{2}=\pi4^{2}=16\pi \]
substitute the value of pi and get the solution.

Answer 3

ok thanks

Answer 4

Anytime.