Question

18. Draw a Δ ABC with side BC=6 cm, ∠ B =30° and ∠ A=120°. Then construct a triangle whose sides are 4/3times of the corresponding sides of triangle ABC.

Answer 1

In triangle ABC
given,
angle A =120, angle B=30 therefore angle c will be 30 degree
now
corresponding side of bc= 6×4/3 = 8cm
corresponding side of bc=de=8 cm
now construct the 30 degree at d and at e also
then they will at f whose angle will be 120 degree. this is the required triangle DEF