Question

answer this question with step by step explanation class 7 And who ever will give me the correct answer I will mark him or her as brainlist​

Answer 1

Answer:

x + y = 82

Step-by-step explanation:

The lines l, and m and the projection n are parallel to each other

The angles ∠1 and x are a pair of alternate angles

whereas the angles ∠2 and y are a pair of another alternate angles.

• Alternate angles - two angles that are formed on opposite sides of a line that intersects two other lines. If the original two lines are parallel, the alternate angles are equal.

Therefore,

∠1 = x and,

∠2 = y

We're given that ∠1 + ∠2  = 82°

Replacing ∠1 and ∠2  by x and y respectively :-

x + y = 82

This is the required relation between x and y.

                                 

Hope this helps! :)