Question

7. The circumference of a circle is 136 m. Find
(i) the radius,
(ii) the area,
of the circle.​

Answer 1

Answer:

circumference (c)= 136m

c=2πr

136=2πr

136/2=πr

68=πr

68/π=r

68/3.14=r

21.65=r

approx r= 21.6 m

Area of circle =πr²

A=3.14×21.6²

A=1464.99 m

or approx

A=1465m

Answer 2

Step-by-step explanation:

circumference = 2pier

136m = 2pier

136= 2 ×22/7× r

136×7/2×22=r

86.5454= r

b ) area = pie r ^2

area= 22/7 × 86.5454

=272.99