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Pls help BYU question(GEOMETERY
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Pls help BYU question(GEOMETERY

Pls help BYU question(GEOMETERY-example-1
User Hearen
by
2.9k points

2 Answers

1 vote

Answer: 40°

Explanation:

<3 is congruent to <17

This means that <17 = 140°

<17 and <18 are supplementary angles, meaning <17 + <18 = 180°.

You can substitute <17 = 140° into this equation, making the equation 140° + <18 -= 180°.

If you subtract 140 from both sides, you are left with <18 = 40°.

User David Bau
by
3.3k points
3 votes

Answer:

40

Explanation:

User Jens Meder
by
3.4k points
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