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djyliett [7]
3 years ago
7

Help please! will give brainliest!!!

Mathematics
1 answer:
TEA [102]3 years ago
5 0

Answer:

m<1 = 69°

Step-by-step explanation:

Angles 20x + 11 and 25x - 14 are vertical angles, so they are congruent.

25x - 14 = 20x + 11

5x = 25

x = 5

The actual measure of angle 20x + 11 is 20(5) + 11 = 111°.

Angle 20x + 11 and <1 are supplementary, so the sum of their measures is 180°.

m<1 + 111° = 180°

m<1 = 180° - 111°

m<1 = 69°

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