3 years ago

Find the value of X

Mathematics

2 answers:

Basile [38]3 years ago

4 0

$x + 3x + 80 = 180 \\ 4x = 180 - 8 0 \\ 4x = 100 \\ x = \frac{100}{4} \\ x = 25 \: \: \:$

sweet [91]3 years ago

3 0

The sum of all the angles of the triangle is 180°.

80 + 3x + x = 180°

80 + 4x = 180°

4x = 180 - 80

4x = 100

x = 100/ 4

x= 25

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Answer:

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