Question

EXERCISE 10.1
1. Construct an angle of 90° at the initial point of a given ray and justify the
construction.

Plzzz Answer with explanation.​

Answer 1

We can construct a 90º angle either by bisecting a straight angle or using the following steps.

• Step 1: Draw the arm PA.
• Step 2: Place the point of the compass at P and draw an arc that cuts the arm at Q.
• Step 3: Place the point of the compass at Q and draw an arc of radius PQ that cuts the arc drawn in Step 2 at R.