Question

in figure AB parallel to CD and l is a transversal if angle 1=(3x-20)° and angle 8=(5x-8°) then find the measure of angle 1 and angle 8​

Answer 1

Answer:

20°

Step-by-step explanation:

angle 1 = angle 7

(alternate exterior angle )

so

3x -10 = 5x -30

3x -5x = -30 +10

-2x = -20

X= 10

angle1 = 3x -10 = 3×10 -10 =30-10 =20°

angle7 =5x-30 = 5×10 - 30 =50-30 = 20°