Question

if triangle ABC = Triangle QPR and BC=7cm,angle B =40⁰,angle C =60⁰,then we have​

Answer 1

Step-by-step explanation:

647 degree is your answer........

Answer 2

Answer: 80°

Step-by-step explanation:

angle C= 60°,angle B= 40°

We already know that the sum of all three angles in triangle is 180°

So we have to add 60° + 40° = 100°

Then we have to minus 100° from 180°

Therefore the answer is 80°