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

Question

asked Jun 8, 2022 117k views

2 Answers

Gerrit Beuze · Answer 1 · 2022-06-12T19:08:58+0000

Answer:

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.)