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4 years ago

6

Find the length of a track that is a rectangle and two semi circles . Rectangle is 87m long and 65 m wide

1 answer:

Mice21 [21]4 years ago

7 0

Answer:

Step-by-step explanation:

larger radius R=87/2

smaller radius r=65/2

larger semi circle=1/2×2×π×R=π×R=π×87/2=87 π/2≈136.6 m

smaller semicircle =π×r=π×65/2=65 π/2≈102.1 m

length of track=87+65+136.6+102.1≈390.7 m

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Let
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2 years ago

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Answer:

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Step-by-step explanation:

we have

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solve by substitution

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