Question

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Answer 1

FOLLOW THE PICTURE IN MY ATTACHMENT FOR BETTER UNDERSTANDING

Line l is a straight line (∴ angle is 180°)

40° + x + 25° = 180°

x + 65°= 180°

x = 180° - 65°

x = 115°

Line m is also a straight line (∴ angle is 180°)

x + 25° + z = 180°

115° + 25° + z = 180° (x=115° shown above)

z + 140° = 180°

z = 180°- 140°

z = 40°

On the other side of line m,

y + 40° = 180°

y = 180°- 40°

y = 140°

ANS) x = 115°, y = 140°and z = 40°

Answer 2

Step-by-step explanation:

your answer is in the attachment