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2 years ago

Please HELP❗️40 points

Mathematics

1 answer:

Alekssandra [29.7K]2 years ago

4 0

Answer:

This is acute angle since 75° < 90°

This is an isosceles triangle

<u>Exterior angle is the sum of non-adjacent interior angles:</u>

4x + 7 + 6x - 9 = 118
10x - 2 = 118
10x = 120
x = 12

m∠L = 4*12 + 7 = 48 + 7 = 55°

<u>The triangles are congruent and corresponding sides are equal:</u>

3x - 5 = 2x + 1
3x - 2x = 1 + 5
x = 6

<u>Side lengths are:</u>

3*6 - 5 = 13

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