Question

The sides of a triangle are in the ratio of 3:4:5 it's perimeter is 36cm then what is its area.

Answer 1

Answer:

Area of the given triangle

So according to the question,

3x+4x+5x = 36

12x = 36

x = 36/12

x = 3

Side A = 3x = 3×3 = 9

Side B = 4x = 4×3 = 12

Side C = 5x = 5×3 = 15

Semi-Perimeter = s = 36/2

Semi-Perimeter = s = 18 cm

Area = 54 cm²

Step-by-step explanation:

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