Question

examine whether you can construct triangle PQR such that QR= 6.8 cm , m angle Q = 120 degree and m angle R = 75 degree. justify your answer​

Answer 1

Answer:

In △DEF:

∠E=110

∘

,∠F=80

∘

,∠EF=7.2 cm

∠E+∠F+∠D=180

∘

∠D=180

∘

−110

∘

−80

∘

=−10

∘

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