Question

one of a triangle is 80 and the other two are in the ratio 1:3 find these angles.​

Answer 1

Answer:

Other are 25° and 75°

Step-by-step explanation:

Thanks

Answer 2

Let angle ∠A of a triangle ABC = 80°

But sum of three angles of a triangle = 180°

Sum of remaining two angles = 180° – 80° = 100°

Ratio in their two angles = 3:2

Let second angle = 3x

and third angle = 2x

3x + 2x = 100°

5x = 100 x = \frac { 100 }{ 5 } = 20°

second angle ∠B = 3x = 3 x 20° = 60°