1.

Which of triangle whose sides are given below are right angled?

A. AB = 89, AC = 80, BC = 39
B. AB = 57, AC = 50, BC = 45
C. AC = 34, AB = 20, BC = 21
D. AC = 50, AB = 32, BC = 20
Answer» B. AB = 57, AC = 50, BC = 45


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