The angles in a triangle are such that one is 128° more than the smallest angle, while the third angle is two times as large as the smallest angle. find the measure all three angles.

Let x degrees be the measure of the smallest angle. Then, since the 3 angles in a triangle add up to 180 degrees:-

x + x + 128 + 2x = 180

4x = 180 - 128 = 52

x = 13 degrees

The measure of the 3 angles is 13, 26 and 141 degrees (answer)

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step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).