Answers

2015-05-21T14:30:11+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The area of a circle is:
A=πr²
simply π as 3.14 or we could just leave it there and r is the radius.

Diameter is not a radius but simply twice the radius so, divide it by 2
D=2r
14 dm=2r
r=7 dm

Substitute
A=πr²
A=π(7 dm)²
A=49π dm²

If your professor doesn't consider π as a variable multiply by 3.14
A=49(3.14) dm²
A=153.86 dm²

Hope this helps =)
0