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A triangle has two congruent sides one interior angle Of the triangle measures 40° what are two possible measures measures for the other angles

1 Answer

4 votes

Answer:

70 degrees for both the unknown angles

Explanation:

All angles in a triangle measures 180

So since congruent sides make congruent angles we can say that there will be two identical angles

Lets take the unknown angle as "x"

Since there are two unknown angles x becomes 2x

So

40+2x=180

Subtract 40 from both sides

2x=140

Divide by 2 on both sides

X=70

User Ali Tamoor
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