3 years ago

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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