1.

In a △ ABC, if 2A-3 2B-6 <C then calculate 2A, 2B and 2C.EXAMPLE 2.

Answer»

2 A = 3 B = 6 C

B = 2/3 A,C = 2/6 A = 1/3 A

We know thatSum of interior angles of a triangle are 180°

A + B + C =180

A + 2/3 A + 1/3 A = 180°

2 A = 180

A = 90°



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