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4) The diameter of a semicircle is 34.4 miles. What is the semicircle's perimeter?

() Use 3.14 for and round your answer to the nearest hundredths.

User Spencer
by
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1 Answer

2 votes

Answer:

88.41


c = 2\pi \: r

but this is only semi circle so,


c = \pi \: r

so,

c= 3.14 x 34.4/2(radius)

= 54.008

P = diameter + circumference of a semi circle

= 34.4+54.008

=88.408

=88.41 miles

User Marl
by
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