Question

Find the area of a circle with: :
A. Diameter 21 m
B. Radius 7 cm cm.
C. Diameter 7 m
D. Radius 20 cm​

Answer 1

Circle

Solve for area

A≈153.94cm²

r Radius

7

cm

Solution

A=πr2=π·72≈153.93804cm²

Answer 2

Answer:

A. πr²= 3.14× 10.5 = 32.97 m

B.πr²=3.14×7 = 21.98 cm

C. πr²=3.14×3.5 = 10.9 m

D. πr²=3.14×20 = 62.8 cm

Step-by-step explanation:

A. r=D/2 =21/2=10.5 m

C. r= D/2=7/2=3.5 m

hope it helps