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One angle of a triangle measures 120 degreese. The other two angles are congruent.Write and solve an equation to find the measure of the congruent angles.

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User Muratoner
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2 Answers

3 votes

Answer:

180°

Explanation:

just look at the answer verified question really

User Sachin Varma
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3 votes
The total degrees in a triangle is 180.

since the other two angles are the same we can give them the same variable "a"
So a + a + 120 = 180

combine like terms
2a + 120 =180

Subtract 120 from both
2a + 120 -120 = 180 -120
2a = 60

now divide by 2
2a = 60
2 2 a = 30⁰

Check 30⁰ + 30⁰ + 120⁰ = 180⁰
180⁰ = 180⁰

User Duc Nguyen
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