Question

Examine whether you can construct ⊿ABC such that AB = 5cm. , ∠A = 1200

and

∠B = 800

. Justify your answer.​

Answer 1

Answer:

Answer

Given ΔDEF,∠E=110

∘

,∠F=80

∘

,∠EF=7.2 cm.

→∠E+∠F+∠D=180

∘

→∠D=180

∘

−110

∘

−80

∘

=−10

∘

As angle cannot be negative, so this Δ can not be constructed.