Question 39

Q22Short answerExercise 3.3

The angles of a cyclic quadrilateral ABCD are ∠A = (6x + 10)°, ∠B = (5x)° ∠C = (x + y)°, ∠D = (3y – 10)° Find x and y, and hence the values of the four angles.

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x = 20, y = 30, A =130º, B=100º, C= 50º, D=80º