Question

The sides of a triangle are in the ratio 3 : 4 : 5 and its perimeter is 48 cm. The area of the triangle is __________sq.cm. 96 480 48 960

Answer 1

Let the sides be 3x , 4x and 5x respectively
ATQ. 3x + 4x + 5x = 48
12x = 48
x = 4
Sides= 3(4)= 12 cm , 4(4)= 16 cm , 5(4)= 20 cm
According to Heron’s Formulae

Area = Under root of s(s-a)(s-b)(s-c)

Where a , b and c are sides and s is semi perimeter


Area = Under Root of 24(24-12)(24-16)(24-20)
Area = 96 sq.cm.



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Answer 2

Step-by-step explanation:

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