Question

if the perimeter of a triangle is 45 cm and the ratio of the 3 sides is 2:3:4, find the length of all 3 sides. please help me

Answer 1

Answer:

⇒ Perimeter of triangles is 27cm.

⇒ Sides are given in ratio 3:2:4

⇒ We know, Perimeter of triangle = Sum of all sides.

⇒ Let sides of triangle are 3x,2x and 4x.

⇒ 3x+2x+4x=27

⇒ 9x=27

∴ x=3

⇒ 1st side =3x=3×3=9cm

⇒ 2nd side =2x=2×3=6cm

⇒ 3rd side =4x=4×3=12cm

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