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3 years ago

12

Find the surface area of the regular hexagonal pyramid shown to the nearest square meter. a. 406 m2 b. 393 m2 c. 819 m2 d. 240 m

2

1 answer:

elena-s [515]3 years ago

8 0

Answer is A. 406m2 so there is the answer to anyone who comes across this.

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3 years ago

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Given that the length a < b, what is the order of the angles ∠ABC, ∠ACB, and ∠CAB from least to greatest?

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3 years ago

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Deffense [45]

Answer: Not safe

Step-by-step explanation:

Let the angle of elevation of the ramp be θ, then:

$\begin{aligned}&\sin \theta=\frac{1.5}{10}=0.15 \\&\theta=\sin ^{-1}(0.15) \approx 8.63^{\circ}\end{aligned}$

But the maximum angle for the ramp cannot exceed 7.1°. The calculated angle of elevation will make it difficult, if not impossible, for motorized wheelchairs to get up the ramp.

Therefore, the ramp at the local library is not safe for motorized wheelchairs

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2 years ago