Question

Construct a angle having its perimeter 12cm and the ratio of the sides is 2:3:4

Answer 1

Let length of side of triangle be 2x ,3x ,4x

Perimeter = sum of all side

12 = 2x + 3x + 4x

12 = 9x

x = 12/9 = 4/3cm

Side of triangle ,

2x = 2×4/3 = 2.6cm

3x = 3×4/3 = 4cm

4x = 4×4/3 = 5.3cm

Now you can construct it.

Hope it helps