Question

A circle has radius of 5cm

(a) work out circumference of the circle

(b) work out area of the circle

Answer 1

31,4
75,8
Is the right answer

Answer 2

A) 31.4

B)78.5

Explanation:

A)2(pi)(r)

2*3.14*5=31.4

B)(pi)(r^2)

3.14*5^2=78.5