SSC CPO SI and ASI Model Paper 8

Question : 102 of 200

Marks: +1, -0

The perimeter of a triangle is 24 cm. What will be the area of the triangle if the ratio of the lengths of its sides is 3 : 4 : 5?

$48 cm^2$
$60 cm^2$
$24 cm^2$
$36 cm^2$
(3) The lengths of the sides of thetriangle is 3x, 4x and 5x.Perimeter = 12x = 24, So, x = 2The sides are 6 cm, 8 cm and 10cm, so they form a Pythagorean triplet.

Validate

Solution:

(3) The lengths of the sides of thetriangle is 3x, 4x and 5x.
Perimeter = 12x = 24, So, x = 2
The sides are 6 cm, 8 cm and 10cm, so they form a Pythagorean triplet.
Area of the triangle is

A =1/2× 6× 8 24 cm^2

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