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Anna35 [415]
3 years ago
13

The perimeter of a triangle is 38cm. The first side is 10cm longer than the second side, the third side is twice as long as the

second side, what are the three side lengths?
Mathematics
1 answer:
Natalija [7]3 years ago
8 0
Side 1: 17 Cm.
Side 2: 7 Cm.
Side 3: 14 Cm.

Hope This Helped.
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Answer:

She needs 301.8 in² of tissue paper.

Step-by-step explanation:

In order to calculate the amount of tissue paper she needs to make 21 hats, we need to find the area of each hat and multiply it by the total number of hats she wants to make.

Since the Vietnamese conical hats are hollow and don't have a base, we need to find the area of the it's lateral walls, this is given by the following expression:

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l = sqrt(r² + h²) = sqrt(8² + 9²) = sqrt(64 + 81) = sqrt(145)  = 12.041 in

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She needs 301.8 in² of tissue paper.

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