1.

If angle P and angle Q are supplementary and the measure of angle P is 60°, then the measure of angle Q is (a) 120° (b) 60° (c) 30° (d) 20

Answer»

(a) 120o

When the sum of the measures of two angles is 180o, the angles are called supplementary angles.

P + Q = 180o

60o + Q = 180o

Q = 180o – 60o

Q = 120o



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