Question

Find the value of the given figures:-

Answer 1

Ans ii) x = 25 + 52 = 77°     [Exterior Angle]
Ans iii) x = 45 + 45 = 90°   [Exterior Angle]
ans iv) x = 130-90 = 40°  [Exterior Angle]

Answer 2

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Answer down here⏬⏬

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1.In given triangle , angles are 52° and 25°

Assume another angle as y°

So , by using angle sum property

52°+25°+y=180°

77°+y=180°

y=180°-77°

y=103°

x,y form a linear pair

so, 103°+x=180°

x=180°-103°

x=77°

2.In the given triangle ,given angles are 45°,45° and assume another angle as y°

By using angle sum property

45°+45°+y=180°

90°+y=180°

y=180°-90°

y=90°

x,y form a linear pair

# x+y=180°

x+90°=180°

x=90°

3.In the given triangle , given angles are x° and 90°

assume another angle as y

since , y and 130° form a linear pair

y+130°=180°

y=50°

In triangle ,by using angle sum property

90°+50°+x=180°

140°+x=180°

x=40°


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