Question

do give step by step procedure​

Answer 1

Line l // m

3y = 2y + 25 [Alternate interior angles are equal]

3y = 2y + 25

3y- 2y = 25

y = 25° -------------(1)

3y = 3 × 25

3y = 75°

2y + 25 = 2× 25 + 25

2y + 25= 75°

75°=75° (alternate interior angle)

2y + 25 = x + 15 [vertically opposite angles are equal]

2 × 25 + 25 = x + 15 ............... ( using 1 )

50 + 25 = x + 15

75 = x + 15

75 - 15 = x

60° = x

X = 60° , Y = 25°

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