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3 years ago

13

How many 90 degree angle does it take to make a full turn

2 answers:

ser-zykov [4K]3 years ago

7 0

Full turn = 360°

Number of 90° = 360 ÷ 90 = 4

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Answer: It takes 4 90° to make a full turn.
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prisoha [69]3 years ago

7 0

So a full circle is 360 degrees. 90 degrees is 1/4 of that. SO you can either add 90 to itself till your at 360, or multiply, 90 x1, 90 x2, and you will find out that because it is 1/4 your answer is 4!!! I hope this helps, is possible maybe a thanks and brainliest!!!(Im trying to get to the next rank!)

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garri49 [273]

Answer:

The height of the Eiffel Tower will be 318 feet.

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Please check the attached graph.

From the diagram, it is clear that Lizbeth is 5.5 ft tall, seeing the top from 318 feet away, making an angle of elevation to be 72⁰.

The diagram makes a right-angled triangle.

Given the angle = Ф = 72⁰

Adjacent = a = 5.5 ft

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Pythagorean Theorem:

For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

$c=\sqrt{a^2+b^2}$

$a=5.5$

$b=318$

$c=\sqrt{5.5^2+318^2}$

$c=318$ feet

Therefore, the height of the Eiffel Tower will be 318 feet.

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