Question

15. The angles of a triangle are in the ratio 1:2 3. Find the anges of the triangle

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Answer 1

Answer:

20°,60°,90°

Step-by-step explanation:

let the angle of the triangle be x

then first angle = x

second angle = 2x

third angle = 3x

in a triangle sum of all angles = 180°

so, x+2x+3x = 180°

= 6x= 180°

= x= 180/6 = 30°

so first angle = x= 30°

so first angle = x= 30°second angle = 2x = 2×30 = 60°

so first angle = x= 30°second angle = 2x = 2×30 = 60°third angle = 3×30 = 90°

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