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Basic Mathematics

Angles and Lines

Complementary and Supplementary Angles


Given that (green angle)=31,\color{#20A900}{\text{(green angle)} = 31^\circ}, which of the following is complementary to that green angle\color{#20A900}{\text{green angle}}?

Which pair of angles are supplementary?

Suppose A=65\angle A = 65^\circ , B\angle B\, is complementary to A, \angle A, and C \angle C is supplementary to B. \angle B. What is the measure of C? \angle C ?

If A=5\angle A=5 ^\circ and B\angle B is the supplement of A,\angle A, then A+B\angle A + \angle B forms a(n) __________.\text{\_\_\_\_\_\_\_\_\_\_}.

A)\quad \text{A)} acute angle
B)\quad \text{B)} right angle
C)\quad \text{C)} obtuse angle
D)\quad \text{D)} straight line
E)\quad \text{E)} none of the above

Find the measure of Z.\angle Z.


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