Question

please please answer my question
I mark your answer as brainest answer please
please answer correctly otherwise you did answer when answer is know please answer ​

Answer 1

Answer:

question 1 ans is 4x+3x+2x=180

9x = 180

x= 20

question 2 ans is 180 = ( 100 + x)

x= 80

Answer 2

Answer:

<=angle

10).<1+<2+<3=180°

Step by step

Given= Angle PQR with angle

<1, <2, <3

Toprove =<1+<2+<3=180°

Constructon=Draw a line XY Passing through P parallel to QR

Proof =For line XY &QR, With transversal PQ

<2=<4 [alternate angle]=(1)

For line XP &QR with transveral PR

<3=<4 [alternate angles]=(2)

Also, for line XY

<1+<4+<5=180° [linear parallel]

{<1+<2+<3=180° [from (1) and (2)