two angles form a straight angle. what is the one angle measures 89°. what is the measure of the other angle?
2 answers:
Sum of angles in a straight line is 180 degrees. If the angles are two, it means they both add up to 180 degrees. Since one of the angles is 89°, let the other be y. y + 89 = 180 y = 180 - 89 y = 91 The other angle is 91°
A straight line is = to 180 degrees (straight angle) so the formula would be X+89=180 subtract the 89 from both sides and you get x=91 so the other angle is 91 degrees
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