mjlewis7143 mjlewis7143

01-06-2017
Mathematics

contestada

The area of the circle above is 1,962.5 units2. What is the circumference of the circle? Use = 3.14.

A.
654.17 units
B.
981.25 units
C.
78.5 units
D.
157 units

Respuesta :

ghanami ghanami

01-06-2017

hello :

the area of the circle is : A = πr²
A=1,962.5 units2 and π = 3.14.
find : r² and r
the circumference is : P=2πr

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