Question

How do you find the value of x in a triangle when give two other angles. Such as 70Degrees and 25Degrees, X Degrees.

Answer 1

Let ABC be a triangle where, angle A = 70 degrees, angle B = 25 degrees and angle C = X degrees

Therefore, angle A + angle B + angle C = 180  .......Sum of the angles of the triangle is 180 degrees

                70 + 25 + X  = 180

                                X  = 180 - 95

                                X  = 85 degrees

Therefore, angle C = X = 85 degrees.