178k views
3 votes
To calculate the area of a circle, which formula should be used?

A. A= π⋅r3

B. A= π⋅d

C. A= 2π⋅r

D. A= π⋅r2

User Brian Bien
by
4.4k points

2 Answers

4 votes

Answer:

Answer will be D

Explanation:

User Jpkotta
by
3.8k points
1 vote

Answer:

D

Explanation:

Area equals pie times radius squared, which makes sense in a weird way since double radius is diameter, so radius times radius is area, well that times pi

i hope this helps u :)

User Andrii Bogachenko
by
3.6k points