Question

in the given figure AS ll BT; angle 4=angle 5 SB biects angle AST .find the measure of angle 1 ...​

Answer 1

Answer:

angle1 = 60°

Step-by-step explanation:

angle4 = angle5

AS || BT , angle2 = angle5 (alternate interior angles)

but angle2 = angle3 (SB bisects angleAST)

Therefore, angle3 = angle5

but angle4 = angle5 (proved above)

means angle3 = angle4 = angle5 = 60°

and angle1 = angle4 (co interior angles)

angle1 = 60°

HOPE YOU(Aap) UNDERSTAND!!