Question

please tell this asap​

Answer 1

Solution:
As we can see that <1=<4 (vertically opposite angles )
Hence ratio of <2&<4 =5:4

Also <4=<8 (corresponding angles)

Hence <1=<4=<8

Thus ratio of <1&<8 =4:4
ie 1:1

Hope this will help you:)

Answer 2

Ratio of the angle 1 and 2 is 4:5

so let the ratio be 4x and 5x

so, 4x+5x =180°(linear pair)

9x=180°

x=180/9=20°

so angle 1 =4×20=80°

and angle 2 =5×20=100°.

Angle 1 is also equal to angle 8 because they are alternate exterior angles.

so angle 8 = 80

so the ration between angle 1 and 8 is 80/80

which is 1:1