Question

What is the m∠1? 21° 42° 71° 82°

Answer 1

The measure of m∠1 in the diagram attached is 71 degrees

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

From the diagram:

63 + (15x - 3) = 180° (sum of angles on a straight line)

15x = 120

x = 8

m∠1 = 8x + 7 (opposite angles are equal)

m∠1 = 8(8) + 7 = 71°

The measure of m∠1 in the diagram attached is 71 degrees

Find out more on equation at: brainly.com/question/2972832

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Answer 2

Answer:

C 71

Explanation: