Parallel and Intersecting Lines Class 7 Very Short Question Answer

Parallel and Intersecting Lines Class 7 Very Short Question Answer

Parallel and Intersecting Lines Class 7 Very Short Question Answer

Question 1.

The sum of the two vertically opposite angles is 166°. Find each of the angles.

Solution:

Each angle = [latex]\frac{166^{\circ}}{3}[/latex] = 83°.

Question 2.

If one of the angles of a linear pair is 70°, then find its other angle.

Solution:

Other angle = 180° - 70° = 110°.

Question 3.

In the figure, if line l is parallel to m, then find the value of x.

Solution:

∠1 = 180° - 105° = 75°.

So, ∠x = ∠1 = 75° (Corresponding angles)

Question 4.

If one angle of a linear pair is 90°, then find the other angle of the pair.

Solution:

Other angle = 180° - 90° = 90°.

Question 5.

In the given figure, state whether l is parallel to m or not. Why or why not ?

Solution:

Sum of the interior angles on the same side of the transversal = 110° + 68°= 178° ≠ 180°.

So, l is not parallel to m.