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
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