Question

construct an angle of 22 1/2 ° at the initial point of given ray​

Answer 1

Steps of Construction: 

1. Draw a straight line AB. 

2. With center 'A', taking a convenient radius draw an arc that intersects AB at P. 

3. With P as a center with the same radius draw an arc at Q, with Q as center with same radius draw an arc that intersects at R. 

4. With R and Q as centers with the same radius draw two arcs that intersect at S. Join AS, ∠BAS=900. 

5. Now construct AT which is the angular bisector of ∠BAS, and join AT, ∠TAB=450. 

6. Now construct AU which is the angular bisector of ∠TAB, and Join AU. Now, ∠UAB= 22 1/2°

Answer 2

• Draw a straight line AB.
• With center 'A', taking a convenient radius draw an arc that intersects AB at P.
• With P as a center with the same radius draw an arc at Q, with Q as center with same radius draw an arc that intersects at R.