Trigonometry Practice

8 September 2022
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10 test answers

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question
[Part A] All but two of the pyramids built by the ancient. Egyptians have faces inclined at 52 angles. Suppose an archeologist discovers the ruins of a pyramid. Most of the pyramid has eroded, but the length of a side of the square base is 82 meters. How tall was the pyramid, assuming it's faces we're inclined at 52? Round your answer to the nearest meter.
answer
52m
question
[Part B] According to historical records, the Great Pyramid of Giza was originally about 147 meters tall. Assuming it was built with its faces at a 52 incline, which of the following is the original length of one of its sides? Round your answer to the nearest meter.
answer
230m
question
[Part A] Which is the ratio for sin A, written as a fraction in simplest form?
answer
3/2
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[Part B] In the previous problem, which of the following is mB to the nearest degree?
answer
30
question
Find the value of x. Round to the nearest tenth.
answer
11.5
question
Find the value of x. Round to the nearest tenth.
answer
8.3
question
Find the value of x. Round to the nearest degree.
answer
21
question
Find the value of x. Round to the nearest degree.
answer
59
question
Find the value of x. Sin x= 0.5
answer
30
question
Find the missing value to the nearest hundredth of a degree. Cos = 0.2546
answer
75.25