Question

Find the values of x and y in the figure.
30
140°
у​

Answer 1

Answer:

y = 40⁰

x = 70⁰

Step-by-step explanation:

y + 140 = 180( linear pair

y= 180-140= 40⁰

x = y+ 30( the sum of 2 interior angles of a triangle is equal to the exterior angle of the opposite side)

x = 40⁰+30⁰ = 70⁰

Answer 2

☆Answer☆

140° + y = 180° (Linear pairs)

y = 180°-140°

y = 40°

In tri.ABC

40°+30°+∠ABC = 180°

70°+∠ABC = 180°

∠ABC = 180°-70°

∠ABC = 110°

Now,

x + 110° = 180°

x = 180°-110°

x = 70°

Hence,

x = 70° and y = 40°.

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