Question -
Answer -
Steps of construction :
(i) With the help of protractor draw an angle ABC = 108┬░.
As 54┬░ =┬а
┬аx 108┬░ тИ┤ We shall bisect it.
┬а
(ii) With centre B and a suitable radius, draw an arc meeting BC at E and AB at F.
(iii) With centre E and F, and radius more than half of EF, draw arcs intersecting each other at G
(iv) Join BG and produce it to D.
Then тИаDBC = 54┬░.