Question

construct a triangle whose sides are in the ratio 1:3:5and whose perimeter is 18cm

Answer 1

Answer:

Step-by-step explanation:

Ratio=1:3:5

Perimeter=18cm.

Let the common multiple of the ratio be y.

Since perimeter is sum of all sides

therefore-

y+3y+5y=18

9y=18.

Dividing both sides of the equation by nine, we get-

y = 18/9 = 2

Therefore-

y = 2cm

3y= 3 x 2 = 6cm

5y= 5 x 2 = 10cm

Now the construction would be to draw a triangle taking 10cm as base and working from there.