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25 votes
Find the outer perimeter of this figure.

Round your answer to the nearest
hundredth. Use 3.14 to approximate.

Find the outer perimeter of this figure. Round your answer to the nearest hundredth-example-1

2 Answers

11 votes

Answer:

P = 28.66 ft

Explanation:

So perimeter of half circle

= 2π × 6/2

= 2π × 4/2

= 8π ft/2

= 4 π

Total Perimeter = 6 ft + 8π/2 ft + 10 ft +

= 6 ft + 4 π ft + 10 ft

= 28.666 ft

Total Perimeter = 28.66 ft

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User Steve Neal
by
3.4k points
6 votes

Answer:

28.56

Explanation:

The sides of the triangles are already given, so that will be 16. The diameter of the circle is given to be 8, so the radius will be half of it, 4. The circumference of a circle 2πr, so the circumference is 8π. we need to divide this by two because it is a semicircle, so the circumference of the semicircle is 4π. The answer should be 16+4π, and we can substitute in 3.14 for π to get 12.56+16=28.56

Hope this helps!

User Zoltan Varadi
by
3.7k points