23janelledubin 23janelledubin
  • 21-04-2021
  • Mathematics
contestada

a circle has a diameter of 18. the sector has a central angle of 30 degrees. what is the area of the sector?

Respuesta :

hubertarek
hubertarek hubertarek
  • 21-04-2021

Answer:

21.21

Step-by-step explanation:

Area of a circle is A = π r^2

Variables:

r = 18/2 = 9

θ = 30 deg

Find the area:

A = π r^2

A = π 9^2

A = 254.47

Find the area of the sector:

θ/360 * A

= 30/360 * 254.47

= 21.21

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