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djverab [1.8K]
2 years ago
14

The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
6 0

Answer:

Step-by-step explanation:

The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.

find the value of x

x + 2x + x + 8 = 180

4x = 180 - 8

4x = 172

x = 172 : 4

x = 43

find angles

2x = 43 * 2

2x = 86°

-------

x = 43°

--------

x + 8 = 43 + 8

x = 51°

-----------------------

check

86 + 43 + 51 = 180°

the answer is good

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