Question

What is the diameter of the circle if the area of the circle is 706.5cm

Answer 1

Answer

30

Step-by-step explanation:

Area of a circle is pi X r X r =706.5

πr²=706.5

π=3.14

r²=706.5/π

r²=706.5/3.14

r²=225

√r=15

2r=D

D=15*15=30

Diameter of the circle is 30 cm.

Answer 2

diameter of circle = 2× radius(r)

area of given circle = 707.5 cm²

area of circle = π× r²

706.5 = π×r²

r² = 225

r = 15

d= 2r

d = 30 cm