My cousin needs help with his homework,and I have no clue what he learned,can you help?

Mathematics

2 answers:

Paul [167]3 years ago

5 0

For each problem, you take the perimeter and divided it by the number of sides the shape has.

Example: (number 4) the shape has 5 sides and a perimeter of 50 in. so you divide the two numbers to get the length of each side which is 10 in.

nikdorinn [45]3 years ago

3 0

Well for all of them, you divide the perimeter by number of sides. ♡

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Please help! Fast! It needs to be done and show me the steps.

mr_godi [17]

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Formula
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Sum of all exterior numbers = 360°

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Apply Formula
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z + 45 + 55 + 78 + 74 + z = 360

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Combine likes term
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2z + 252 = 360

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Take away 252 from both sides
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2z = 360 - 252
2z = 108

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Divide by 2 on both sides
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2z = 108
z = 108 ÷ 2
z = 54

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Find z + 45
---------------------------------------------
z + 45 = 54 + 45
z + 45 = 99°

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Answer: 99°
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3 years ago