Question

Find the value of x in the figure below :
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Answer 1

Answer:

180-100=18

60+80+X=180

140+X=180

X=180-140

X=40

Step-by-step explanation:

Hope my ans helps u.....

Answer 2

Answer:

The value of x in the figure is 40°.

Step-by-step explanation:

In a linear pair, the total of two angles is always 180°. All neighbouring angles are linear pairs, however not all adjacent angles are linear pairs.

∠DBA + ∠ABC = 180° ( ∵ linear pair)

∠100° + ∠ABC = 180°

∠ABC = 180° - 100°

∠ABC = 80°

The sum of angles of a triangle is 180° .

So, in triangle ABC

∠A + ∠B + ∠C = 180°

x + 80 + 60 = 180°

x + 140 = 180°

x = 180° - 140°

x = 40°

So, ∠A = x = 40°