Construct the following angles and verify by measuring them by a protractor:
(i)`75^@` , (ii)`105^@` , (iii)`135^@`

Explanation

(i) Draw a ray `OA`. Take `O` as center and any radius, draw an arc cutting `OA` at `B`.



With `B` and `C` as center and same radius as before, draw an arc intersecting the previously drawn arc at `C` and `D`. Draw ray `OE` passing though `C` and ray `OF` passing through `F`.



Taking `C` and `D` as center with radius more than `1/2CD` draw arch intersecting at `P`. Join `OP`



Mark point `Q` where `OP` intersects the arc. Taking `Q` and `C` as center and radius more than `1./2QC` draw arcs intersecting at `R`. Join `OR`.



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