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ruslelena [56]
3 years ago
12

How long is line UW?

Mathematics
1 answer:
Neko [114]3 years ago
5 0

Answer: UW= 9√3

Step-by-step explanation:

This right triangle is a 30-60-90 triangle. This is a special triangle. Since this is a special triangle, the hypotenuse is 2x.

The hypotenuse is 18. We can figure out the length of x.

2x=18

x=9

Since we got 9, you would think it is the answer, but it's not. The length across the 60° angle is x√3. Now that we know the length across from 60°, we can plug in x.

9√3

We can check our answer by using Pythagorean Theorem.

9²+(9√3)²=18²

81+243=18²

324=324

Since they are equal, we know we have the right answer.

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There are 204 teddy bears in the shipment.

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Step-by-step explanation:

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The length of a rectangle is 9 cm more then half the width. Find the length of the perimeter is 60cm
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perimeter= 60 =2(l+w)  

substitute in for length

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