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Marina CMI [18]
4 years ago
11

Find the measurement of angle A

Mathematics
1 answer:
Orlov [11]4 years ago
5 0

Answer:

The value of A is 20

Step-by-step explanation:

To find the answer, note that all triangles have a interior degree measurement of 180. Set the sum of the angles equal to 180.

71x - 1 + 20x + 90 = 180

91x + 89 = 180

91x = 91

x = 1

Now we can use this in the A angle to find the value.

A = 20x

A = 20(1)

A = 20

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<em><u>8</u></em><em><u>/</u></em><em><u>2</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>x</u></em>

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<em><u>\\</u></em>

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Step-by-step explanation:

<h2>HOPE IT WILL HELP YOU✌✌✌✌✌</h2>
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