3 years ago

Following diagram find the missing measure.

Mathematics

1 answer:

Temka [501]3 years ago

7 0

Answer:

Step-by-step explanation:

The diagram basically shows three angles that make up a straight line.

We know the angle of a straight line is 180°.

Since there are three angles, Angle 1, Angle 2, and Angle 3 that make up a straight line, we can write:

Angle 1 + Angle 2 + Angle 3 = 180

3x + 4x + 2x = 180

9x = 180

x = 180/9

x = 20

The correct answer is B

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