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PilotLPTM [1.2K]
3 years ago
6

Type the correct answer in the box. Assume that pi=3.14 and round your answer to the nearest integer.

Mathematics
2 answers:
stepan [7]3 years ago
7 0

Answer:

648\ yd

Step-by-step explanation:

step 1

Find the circumference of the complete circle

The circumference is equal to

C=2\pi r

we have

r=35\ yd

substitute

C=2\pi(35)

C=70\pi\ yd

step 2

Find the measure of the arc length for a central angle of 280 degrees

Remember that the circumference subtends a central angle of 360 degrees

so by proportion

\frac{70\pi}{360}=\frac{x}{280}\\ \\x=280*(70\pi )/360\\ \\x=54.44\pi\ yd

step 3

Find the perimeter of the playground

P=54.44\pi+45=54.44*3.14+45=215.96\ yd

Multiply by 3

215.96*(3)=647.87\ yd

Round to the nearest integer

647.87=648\ yd

expeople1 [14]3 years ago
4 0

Answer:

648

Step-by-step explanation:

648

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