hekoso4758 hekoso4758

14-05-2020
Mathematics

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arc length of a half of a circle with radius of 9

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Chelboy Chelboy

14-05-2020

Answer:28.26

Step-by-step explanation:

Φ=180 since it's in a straight line

Radius=r=9

π=3.14

Length of arc=Φ/360 x 2 x π x r

Length of arc=180/360 x 2 x 3.14 x 9

Length of arc=0.5 x 2 x 3.14 x 9

Length of arc=28.26

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