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37 votes
37 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
User Marco Corona
by
2.7k points

2 Answers

24 votes
24 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 Thamster
by
3.5k points
13 votes
13 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 Ralph Shillington
by
2.9k points