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Yakvenalex [24]
3 years ago
8

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

Mathematics
2 answers:
dybincka [34]3 years ago
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]3 years ago
5 0
PI times diameter = 3.14 * ( 2*9mm) /2 = 28.27433388 mm this is the correct answer
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Step-by-step explanation:

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Does the point (9.5, 144) make sense in this context? Explain
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3 years ago
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D

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8 0
3 years ago
1.4t - 0.4 (t- 3.1) =5.8
GenaCL600 [577]
1 Expand
1.4t-0.4t+1.24=5.8

2 Simplify 1.4t-0.4t+1.241.4t−0.4t+1.24 to t+1.24t+1.24
t+1.24=5.8

3 Subtract 1.241.24 from both sides
t=5.8−1.24

4 Simplify 5.8-1.245.8−1.24 to 4.564.56
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7 0
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