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2 years ago

15

15. Determine the measure of x: 35 X 45

1 answer:

Yakvenalex [24]2 years ago

4 0

Answer:

x = 45

Step-by-step explanation:

What we know:

This triangle is an isosceles triangle, so two of the angles are equal to x.
The two bottom are equal to x.
The top angle is ninety degrees
All triangles are 180 degrees

Our equation: 180 = 90 + 2x

subtract 90 from both sides: 90 = 2x
divide both sides by 2: 45 = x
x is 45 degrees

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