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QUESTION:

TWO _______ ARE SAID TO FORM LINEAR PAIR OF THE ANGLES IF THEIR COMMON ARMS ARE TWO OPPOSITE RAYS.

ANSWER:

TWO ADJACENT ANGLES ARE SAID TO FORM LINEAR PAIR OF THE ANGLES IF THEIR COMMON ARMS ARE TWO OPPOSITE RAYS.

GIVEN:

TWO ARMS ARE OPPOSITE.

EXPLANATION:

As the two arms are opposite they form 180° between each other and hence they form the linear pairs because they lie in the same STRAIGHT line. In the DIAGRAM A and B are the two lines having 180° between them.

\pink{ \boxed{ \theta_1  +  \theta _2 = 180 \degree}}

NOTE : REFER ATTACHMENT FOR DIAGRAM.



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