Question

Angle of a triangle are in the ratio 2:4:3. The smallest angle of the triangle is?

Answer 1

Sum of all the angles =180degree
Sum of the ratio terms =2+4+3=9
Therefore, 2 by 9 multiplied by 180degree =40degree

Answer 2

Angle sum property of a Δle = 180°
Here, the angles are in the ratio 2:4:3 
                            ∴2x+4x+3x=180°
                                          9x=180°
                                            x=180°/9
                                          ∴x=20°→1
We know that the smallest angle here is 2x, as it is smaller than 3 and 4.
                  ∴Substituting 2x in 1, we get:
                                     2(20) = 40°.
∴The smallest angle of the triangle is 40°.