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attashe74 [19]
3 years ago
5

Given: BC = 10 inches

Mathematics
1 answer:
RUDIKE [14]3 years ago
4 0

Answer:

area of sector BCD =60/360×π×10²=52.36ft²

a area of sector ADC =90/360×π×√50²=39.27ft²

actual <u>area</u><u> </u><u>=</u><u>5</u><u>2</u><u>.</u><u>3</u><u>6</u><u>ft²-39</u><u>.</u><u>2</u><u>7</u><u>f</u><u>t</u><u>²</u><u>=</u><u>1</u><u>3</u><u>.</u><u>0</u><u>9</u><u>=</u><u>1</u><u>3</u><u>ft²</u>

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Part 5) The length of the ski lift is 1.15\ miles

Part 6) The height of the tree is 18.12 m

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Part 5)

Let

A -----> Beginning of the ski lift

B -----> Top of the mountain

C -----> Base of mountain

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b=0.75\ miles

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Par 6)

see the attached figure with letters to better understand the problem

<u><em>Applying the law of sines in the right triangle BDC</em></u>

In the right  triangle BDC 20 degrees is the complement of 70 degrees

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<u><em>Find the value of BC</em></u>

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BC=18.12\ m

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