Given 2 90 degree 1 and 2 form a linear pair Prove 1 90 de

Given 2 = 90 degree 1 and 2 form a linear pair. Prove 1 = 90 degree. Select one Substitution Property Subtraction Property Given 1 and 2 form a linear pair Definition of an angle bisector.

Solution

Solution:

Answer: Option (d) is correct

<1 and <2 form a linear pair

Explanation:

A linear pair is a pair of adjacent, supplementary angles.

Adjacent means next to each other, and supplementary means that the measures

of the two angles add up to equal 180 degrees.

since <2 =90

as per linear pair rule

<1+<2 = 180

<1 + 90 = 180 ( angle <2 =90 given )

<1 = 180 - 90

<1 = 90

Proved