2 years ago

HOW DO I FIND THE PERIMETER OF A SEMICIRCLE WITH A RADIUS OF 9MM ?

2 answers:

6 0

Perimeter = 2 × π × r

Perimeter = 2 × 3.14 × 9

Perimeter = 56.52

Perimeter = 56.52 ÷ 2

Perimeter = 28.26

The perimeter of a semicircle with a radius of 9mm is 28.26

3241004551 [841]2 years ago

5 0

PI times diameter = 3.14 * ( 2*9mm) /2 = 28.27433388 mm this is the correct answer

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