Question

The sides of a triangle are in the ratio 12 : 14 : 25 and its perimeter is 25.5 cm. The largest side of the triangle is ______.

विकल्प

• 7 cm

• 14 cm

• 12.5 cm

• 18 cm

Answer 1

The sides of a triangle are in the ratio 12 : 14 : 25 and its perimeter is 25.5 cm. The largest side of the triangle is 12.5 cm.

Explanation:

Let the common factor be k.

Sum of ratio parts = 12 + 14 + 25 = 51.

So `k = "Perimeter"/51`

= `(25.5)/51`

= 0.5

The largest side = 25 × k 

= 25 × 0.5 

= 12.5 cm