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Find the measure of three angles of a triangle that have a ratio of 3:4:5

Mathematics
Tutor: None Selected Time limit: 1 Day

triangle

Apr 9th, 2015

Let the angles of triangle are 3x , 4x & 5x

Since the sum of all three angles of a triangle = 180

therefore 3x+4x+5x = 180

or, 12x = 180    ; solving we get,    x = 180/12 = 15

hence angles of the triangle are ,

3x = 3*15=45°

4x = 4*15=60°

5x = 5*15=75°

Hence Answer   45° , 60° , 75°

Apr 9th, 2015

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