Question

the three angles of a triangle are in the ratio 2:3:4.find the measure of each angle (class7th)

Answer 1

Ratio of angles = 2:3:4
Let the angles be 2x , 3x and 4x
We know that sum of all angles of triangle is 180°.
ATP
2x + 3x + 4x = 180
=> 9x = 180
=> x = 180/9
=> x = 20°
The angles are:
2x = 2 × 20 = 40°
3x = 3 × 20° = 60°
4x = 4 × 20° = 80°

Answer 2

Let the common multiple be x.
2x+3x+4x = 180
9x = 180
x = 180/9
x = 20
Therefore, angles are 2x = 2×20 = 40
3x = 3×20 = 60
4x = 4×20 = 80
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Hope it helps....

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