Question

Draw a diagram. The circumference of a circle is 314cm. Find its radius and area of the circle. Take pi= 3.14.

Answer 1

#circumference of circle = 2πr
#314 = 2*3.14*r
#314 * 1/2* 1/3.14 = r
#r = 50
# area = πr^2
= 3.14 * (50)^2
= 7850