Question

Find the area and circumference of a circle which is 5cm​

Answer 1

Answer: 31.416

Explanation:

Answer 2

Area= 78.5 cm² (3 s.f.)

Circumference= 31.4 cm (3 s.f.)

Explanation:

`\boxed{area \: of \: circle = \pi {r}^(2) }`

In this question, the radius is 5cm thus r= 5.

Area of circle

= π(5²)

= 25π

= 78.5 cm² (3 s.f.)

`\boxed{circumference \: of \: circle = 2\pi r}`

Circumference of the circle

= 2(π)(5)

= 10π

= 31.4 cm (3 s.f.)