Question

Please answer these fast​

Answer 1

Answer:

∠A=80°

∠B=55°

∠C=45°

Step-by-step explanation:

Given A,B,C are the angles of a triangle

∠A+∠B+∠C=180°----------------------------------(1)

and also given that

∠A-∠B=25°-------------------------------------------(2)

∠B-∠C=10°--------------------------------------------(3)

                     from (2)

                   ∠A=25°+∠B

                      from (3)

                     ∠C=∠B-10

Substitute these in equation (1)

            ∠A+∠B+∠C=180°

             25°+∠B+∠B+∠B-10°=180°

            3∠B+15°=180°

                3∠B=165

                 ∠B=55°

put in equation (2) and (3)

then ∠A-55°=25°

        ∠A=80°

then  55°-∠C=10°

         ∠C=45°

hope this helps you

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