Draw an angle of 70∘. Make a copy of it using only a straight edge and compasses.
Steps of construction:
(a) Draw an angle 70∘ with protractor, i.e., ∠POQ=70∘
(b) Draw a ray ¯¯¯¯¯¯¯¯AB.
(c) Place the compasses at O and draw an arc to cut the rays of ∠POQ at L and M.
(d) Use the same compasses, setting to draw an arc with A as centre, cutting AB at X.
(e) Set your compasses setting to the length LM with the same radius.
(f) Place the compasses pointer at X and draw the arc to cut the arc drawn earlier at Y.
(g) Join AY.