ggray2376
ggray2376 ggray2376
  • 17-03-2021
  • Mathematics
contestada

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

find the area and circumference of a circle which is 5cm class=

Respuesta :

louisp465
louisp465 louisp465
  • 17-03-2021

Answer: 31.416

Step-by-step explanation:

Answer Link
Leora03
Leora03 Leora03
  • 17-03-2021

Answer:

Area= 78.5 cm² (3 s.f.)

Circumference= 31.4 cm (3 s.f.)

Step-by-step explanation:

[tex]\boxed{area \: of \: circle = \pi {r}^{2} }[/tex]

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

Area of circle

= π(5²)

= 25π

= 78.5 cm² (3 s.f.)

[tex]\boxed{circumference \: of \: circle = 2\pi r}[/tex]

Circumference of the circle

= 2(π)(5)

= 10π

= 31.4 cm (3 s.f.)

Answer Link

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