Question

In the given figure if measure of ∠1 is 80° then what is the measure of ∠2. चित्र में यदि ∠1 का माप 80° है तो ∠2 का माप पता करो । *



(a) 80°

(b) 100°

(c) 20°

(d) 180°

​

Answer 1

Given : Two intersecting lines  Two vertically opposite angles marked  ∠1 and ∠ 2

∠1  = 80°

To Find :   measure​ of  ∠ 2 , choose correct option

80°

100°

20°

180°

Solution:

From figure its clear that

∠1 and ∠ 2 are vertically opposite angles

Vertically opposite angles are equal

hence ∠1 =  ∠ 2

∠1  = 80°

=>   ∠ 2 = 80°

measure​ of ∠ 2 = 80°

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Answer 2

Answer:

80digree C is the correct answer