Question

what is the area of a circle with the diamter of 10cm?

Answer 1

Answer:

$A$ ≈ $78.54cm^2$

Step-by-step explanation:

Using the formulas

A=π r^2

d=2 r

Solving for A

A=1/4πd^2=1/4·π·10^2≈78.53982cm²