Question

draw figures showing (i) < ABC = 100° and (ii) linear pair of angles​

Answer 1

Let one of the angle forming a linear-pair be 'x' and other be y.

As ∠x = 90 0 is given .

We know that linear-pair-angles are supplementary.

∠x + ∠y = 180 0

90 + ∠y = 180

∠y = 180 - 90

∠y = 90 0

If one of the angles forming a linear pair is a right angle then other angle is also right angle.

Answer 2

Hey mate here is your answer.

angle ABC is equal to 100 degree and

angle ABD and angle ABC are in linear pairs.
Angle ABD comes as 80 degree.
Angles in linear pairs are supplementary.
Means they measure 180 degree.
May be helpful for you.
Please mark as a brainliest.