Find the area and circumference of a circular park whose radius is 20 cm.

Asked by Topperlearning User | 8th Aug, 2014, 12:52: PM

Expert Answer:

A r e a space o f space p a r k space equals space pi r squared
space space space space space space space space space space space space space space space space space space space space space space space space equals 3.14 space cross times space 20 cross times 20
space space space space space space space space space space space space space space space space space space space space space space space space equals 1256 space c m squared

C i c u m f e r e n c e space o f space p a r k equals space 2 pi r
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 2 space cross times space 3.14 space cross times space 20
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 125.6 space c m

Answered by  | 8th Aug, 2014, 02:52: PM