Question

If m<10=77, m<7=47 and m<16=139, find the measure of the missing angle m<12=?

Answer 1

m∠12 = 47°

Step-by-step explanation:

Angle 7 and angle 12 are alternate interior angles. They are formed by two parallel lines a and b and a transversal. These angles are located inside the parallel lines on opposite sides of the transversal.

These angles have the same measure, therefore the measure of angle 12 is equal to:

m∠12 = m∠7

m∠12 = 47°

So, the answer is m∠12 = 47°