hmayllazhungo
hmayllazhungo hmayllazhungo
  • 12-06-2022
  • Mathematics
contestada

The area of a circle is 616 cm². Find its circumference. Use π = 22/7
A) 88 cm
B) 44 cm
C) 88 cm²
D) 44 cm²​

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 12-06-2022

Area = PI x r^2

Circumference = 2 x r x PI

Using area find the radius )r)

616 = 22/7 x r^2

Divide both sides by 22/7:

196 = r^2

Take the square root of both sides:

r = 14 cm

Now find the circumference:

2 x 14 x 22/7 = 88 cm

Answer : A) 88 cm

Answer Link

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