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What is the measure of angle 7?

The measure of angle 1 is (3x + 10) and the measure of angle 4 is (4x -
15)
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What is the measure of angle 7? The measure of angle 1 is (3x + 10) and the measure-example-1
User Randa
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2 Answers

16 votes
16 votes

Answer: <7 is 95

Explanation:

User Will McGugan
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16 votes

Answer:

∠7 = 95°

Explanation:

∠1 and ∠4 are vertical angles so they are equal.

so:

3x + 10 = 4x - 15

simplify:

x = 25°

∠4 = 4(25) - 15 = 85°

∠8 = ∠4 because they are corresponding angles

∠7 = 180° - 85° = 95° because they are supplementary angles (add together to = 180°)

User Sudhir Jonathan
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