Question

what is linear pair....​

Answer 1

Answer:

A linear pair of angles is formed when two lines intersect. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.

Answer 2

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Linear pair

A linear pair is a pair of adjacent angles formed when two lines intersect.

$~~~~~~~~~~~~~~~or$

Two angles are said to be linear if they are adjacent angles formed by two intersecting lines.

(refer the attachment )

In the given figure ;

$~~~~~~~~~~~~~~~~∠1 = ∠2$ ( Linear pair )

$~~~~~~~~~~~~~~~~∠2 = ∠3$ ( Linear pair )

$~~~~~~~~~~~~~~~~∠3 = ∠4$ ( Linear pair )

$~~~~~~~~~~~~~~~~∠4 = ∠1$ ( Linear pair )

The two angles of a linear pair are always supplementary , which means their measures add up to 180°