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padilas [110]
3 years ago
6

Aubrey tried to prove that sin(θ)=cos(180°−θ) using the following diagram. Her proof is not correct.

Mathematics
1 answer:
alexira [117]3 years ago
4 0

Answer:

Angles ∠B and ∠C are complementary, not supplementary.

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2 years ago
Find the area pf a trapezoid with a base of 26.7 ft , a height of 15.4 and top of 9.9 ft
evablogger [386]
Hello!

To find the area of the trapezoid, you use the formula A=1/2h(a+b), where a and b represent the two base lengths.

Since we already know the two bases and the height, we can just plug them into the equation to find the area.

A=1/2·15.4(26.7+9.9)
A=1/2·15.4(36.6)
A=1/2·563.64
A=281.82

The area is 281.82 ft².

I hope this helps!
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A great website to find out things like this is

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Which expression is equivalent
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