150k views
4 votes
Given: m∠7 = 50°. Find m∠1. HELP ME PLEASE!!!!!

Given: m∠7 = 50°. Find m∠1. HELP ME PLEASE!!!!!-example-1
User ChuckE
by
5.5k points

2 Answers

2 votes

Answer:

Smae as above, the answer is m∠1 = 130°

Explanation:

Took The Test

User Blackghost
by
5.7k points
6 votes

Answer:

m∠1 = 130°

Explanation:

Same-Side Exterior Angles Theorem: "States that when parallel lines are cut by a transversal line, the same-side exterior angles are supplementary"

According to the Same-Side Exterior Angles Theorem, ∠7 and ∠1 are supplementary angles.

This means that the sum of their angles will equal 180°. Therefore, you can find the measurement of ∠1 by subtracting the measurement of ∠7 from 180.

Given: m∠7 = 50°

180 - 50 = 130°; ∠1 = 130°

User Shahab Rahnama
by
6.0k points