Question

Construct an angle of 90° at the initial point of a given ray and give the justification

Answer 1

Steps
1)draw Ray BC
2)Construct angle ABC =120
3)draw BP, the bisector of angle EBG.
Then angle PBC =90
Justification.
PB bisects angle EBG
angle PBE =1/2 angle EBG
= 1/2 multiply 60 =30.
Angle PBC = angle PBE + angle EBC
therefore 30 +60 =90

Answer 2

Answer:

Steps

1)draw Ray BC

2)Construct angle ABC =120

3)draw BP, the bisector of angle EBG.

Then angle PBC =90

Justification.

PB bisects angle EBG

angle PBE =1/2 angle EBG

= 1/2 multiply 60 =30.

Angle PBC = angle PBE + angle EBC

therefore 30 +60 =90

Step-by-step explanation: