Question

construct a triangle ABC such that a b equals to 3.5 CM BC equals to 6 cm and ac equals to 6.5 CM measure the three angles

Answer 1

sum of three angles is = 180°

Answer 2

To construct: Δ ABC in which AB = 2.5 cm, BC = 6 cm and AC = 6.5 cm. Steps of construction:

(a) Draw a line segment BC = 6 cm.

(b) Taking B as centre and radius 2.5 cm, draw an arc.

(c) Similarly, taking C as centre and radius 6.5 cm, draw another arc which intersects first arc at point A.

(d) Join AB and AC.

(e) Measure angle B with the help of protractor. It is the required Δ ABC where ∠ B = 80°.

I hope this helps!