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spayn [35]
3 years ago
6

Find the measure of angle 1

Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

Answer:

m∠1 = 70°

Step-by-step explanation:

Since the triangle is isosceles, the two base angles are congruent

The sum of the measures of the angles = 180

So, 180 - 40 = 140 = 2m∠1

                        m∠1 = 140/2 = 70°

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3 years ago
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aleksley [76]

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4 years ago
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hram777 [196]

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Answer:

87

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66 + 72 + 87 = 225

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