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Help with this also!! as soon as possible:)

Help with this also!! as soon as possible:)-example-1
User Marcolopes
by
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2 Answers

6 votes

Answer:

Explanation:

Assuming DEF is a straight line, the two angles are supplementary.

(18x - 9) + (4x + 13) = 180

22x + 4 = 180

22x = 176

x = 8

m∠DEG = (18(8) - 9) = 135°

User Chris Bunch
by
4.8k points
4 votes

Answer:

135 degrees

Explanation:

Angle DEG and GEF are supplementary (their measures add up to 180 degrees).

(18x - 9) + (4x + 13) = 180

22x + 4 = 180

22x = 176

x = 8

The measure of angle DEG is 18(8) - 9 = 144 - 9 = 135 degrees

User Paul Fryer
by
4.6k points