For exercises 3-4 find the midpoint of a segment with the given endpoints. 3. K(-9, 3), H(5,7)
4. W(-12, -7), T(-8,-4)

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

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step-by-step explanation:

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