Find the value of x easy math question #3 please help

Mathematics

2 answers:

inna [77]2 years ago

6 0

Answer: x =8

Step-by-step explanation:

-12 + 9x = 60 (the other angles are 60, 180 - (60 + 60) = 60)

9x = 72

x = 8

dem82 [27]2 years ago

4 0

Answer:

x = 8°

Step-by-step explanation:

We know that sum of interior angles of a triangle is 180°, therefore;

<em>(Angle 1) + (Angle 2) + (Angle 3) = 180°</em>

(60)° + (60)° + (-12 + 9x)° = 180°

120° + (-12 + 9x) = 180°

108° + 9x° = 180°

9x = 180 - 108

9x = 72°

x = 72/9

x = 8°

Therefore the <u>value of x is 8°.</u>

Hope this helps!

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