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mrs_skeptik [129]
3 years ago
11

Help please in the photo

Mathematics
1 answer:
Arada [10]3 years ago
5 0

Answer:

m = 40

Step-by-step explanation:

The triangle inside the circle has 2 equal sides ( the radii ) of the circle, thus

The base angles are congruent both 50°

The 3 angles on the tangent sum to 180°, so

m + 50 + 90 = 180

m + 140 = 180 ( subtract 140 from both sides )

m = 40

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Answer:

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The area of the roof is computed by the equation of the area of a cone:
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A = 15\pi (15 + \sqrt{30^{2} +15^{2}  } ) ≈ 2287.44 ft^2.

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