The radius of a semicircle is 2 miles. What is the semicircle's perimeter?r=2 miUse 𝜋 ≈ 3.14 and round your answer to the nearest hundredth. milesSubmitQuestionsanswered3Timeelapsed00 02 09HR MIN SECSmartScoreout of 10037Need a
Question
The radius of a semicircle is 2 miles. What is the semicircle's perimeter?r=2 miUse 𝜋 ≈ 3.14 and round your answer to the nearest hundredth. milesSubmitQuestionsanswered3Timeelapsed00 02 09HR MIN SECSmartScoreout of 10037Need a
Solution
The perimeter of a semicircle is calculated by the formula P = rπ + 2r, where r is the radius and π is approximately 3.14.
Step 1: Substitute the given radius, r = 2 miles, into the formula.
P = 2π + 2*2
Step 2: Calculate the value.
P = 2*3.14 + 4
P = 6.28 + 4
Step 3: Add the values.
P = 10.28 miles
So, the perimeter of the semicircle with a radius of 2 miles is approximately 10.28 miles, rounded to the nearest hundredth.
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