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Firlakuza [10]
2 years ago
8

Can someone pls help for brainlest

Mathematics
1 answer:
gregori [183]2 years ago
5 0

Diameter of the semicircle = 10 km.

Explanation:  perimeter of semicircle =   1  2

the circumference + diameter  Given: perimeter of semicircle =  25.7  k m

Circumference of circle with radius  r =  2 π r  where  2 r = diameter  ⇒ 25.7 = 22 π r + 2 r ⇒ 25.7 = π r + 2 r = r ( π + 2 )  ⇒ 25.7 = r ( 3.14 + 2 ) = r ( 5.14 )  ⇒ r = =5m ⇒d i a m e t e r = 2 r = 10 k m

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See attachment for graph that models the path

Read more about absolute equations at:

brainly.com/question/2166748

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Step-by-step explanation:

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Keywords: sales tax, addition

Learn more about addition at:

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