Question

find the answers of the given question

Answer 1

Step-by-step explanation:

angle A is 75°and so is angle B= 75°

(75+75=150)

and we found angle B is 75° so angle C Is 25°

(75+25=100)

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Answer 2

Step-by-step explanation:

In ΔABC : ∠A + ∠B = 150°

                  ∠A = 150° - ∠B

also, ∠B + ∠C = 100°

        ∠C = 100° - ∠B

now, ∠A + ∠B + ∠C = 180°   [ Angle Sum Property of Triangle]

(150° - ∠B) + ∠B + (100° - ∠B) = 180°

150° - ∠B +∠ B + 100° - ∠B = 180°

250° + ∠B - 2∠B = 180°

-∠B = 180° - 250°

∠B = 250° - 180°                        [ Sign got changed]

∠B = 70°

Now, ∠A = 150° - 70°

         ∠A = 80°

∠C = 100° - 70°

  ∠C = 30°