Answers

2014-12-02T09:44:48+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.
May given ka ng circumference or area, substitute mo yung mga values nila, yung pi ay automatically 3.14. Pagkatapos, divide mo ung 3.14, sa total area or circumference, pag area, isquare root mo yung total area, pag circumference, divide both sides by 2.

Ex.
Given:
π
A=9π
radius=?

A=πr²
9π=πr²
Divide both sides by π
9=r²
√9=r
r=3

Hope this helps =)
0