Question

please solve my sum guys​

Answer 1

I am sure u get ur answer

Answer 2

Answer:

angle 8 = 104 and angle 7 = 76

Step-by-step explanation:

angle 4 = angle 6 (alternate interior angles)

or x + 2y = 3y + 20

or 3y - 2y = x - 20

or y = x - 20

also, angle 1 = angle 3 (vertically oppposite angles)

and, angle 3 + angle 4 = 180 (Linear Pairs)

or angle 1 + angle 4 = 180

or x + y + x + 2y = 180

or x + x - 20 + x + 2(x - 20) = 180

or 3x - 20 + 2x - 40 = 180

or 5x = 180 + 60

or x = 240/5 = 48

Now, y = x - 20

or y = 48 - 20 = 28

and, angle 7 = angle 5 (vertically opposite angles)

angle 5 = angle 3 (interior opposite angles)

angle 3 = angle 1 (vertically opposite angles)

Hence, angle 7 = angle 1

or angle 7 = x + y

or angle 7 = 48 + 28 = 76

and, angle 8 = angle 6 (vertically opposite angles)

or angle 8 = 3y + 20

or angle 8 = 3 * 28 +20

or angle 8 = 84 + 20 = 104