Question

find the angles mark by a & b

Answer 1

Hey mate here's your answer :)

We know that sum of all angles on a straight line is measure to 180'.

A/Q
40'+ a = 180
A = 180-40
= 140 ans


We know that a exterior angle is equal to opposite two interior angle
Therefore,
65 + b = 140
B = 140 - 65
= 75 ans
The values are
A= 140'
B= 75 '

Hope it helps you

Answer 2

Answer:

Step-by-step explanation:Given: SP║RQ, ∠R = 90° and ∠Q = 130°.

To find: The measure of ∠P.

Answer:

It is given that SP║RQ. So let us assume that PQ is the transversal.

Therefore, ∠P + ∠Q = 180° (Co - interior Angles are Supplementary)

∠P + 130° = 180°

∠P = 180° - 130°

∠P = 50°

Now letes mark by a & b

us assume that SR is the transversal.

Therefore, ∠S + ∠R = 180° (Co - interior Angleangles mark by a & b

s are Supplementary)

∠S + 90° = 180°

∠S = 180° - 90°

∠S = 90°