Question

Am 9. In each of the following figures, 1 || m, find the values of x and y.




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Answer 1

Step-by-step explanation:

First figure:

We see l ║ m , to find x and y ?

∴ y = 100°

• [∵ Alternate angles are equal]

Now,

x + y = 180°

• [∵ Linear pair]

x + 100° = 180°

∴ x = 80°

Second figure:

We see l ║ m , to find x and y ?

∴ x = 110°

• [∵ Corresponding angles are equal]

Now,

y + 80° = 180°

• [∵ Linear pair]

y = 180° - 80°

∴ y = 100°