nimakoekow nimakoekow

01-05-2020
Mathematics

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calculate the perimeter of a quadrant of circle of radius is 9 cm.
[tex]take(\pi = \frac{22}{7?} )[/tex]

Respuesta :

musiclover10045 musiclover10045

01-05-2020

Find the circumference of the circle:

2 x pi x r = 2 x pi x 9 = 56.5714 cm

A quadrant is 1/4 of a full circle.

Find 1/4 of the circumference:

56.5714/4 = 14.1429

Now add two radius to that to get the perimeter:

14.1429 + 9 + 9 = 32.1429 cm

Round the answer as needed.

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