The sides of a right angle triangle containing the right angle are 5x cm and 3X-1 centimeter if its area is 60 cm find its perimeter
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Area = b xh/2
5x(3x-l)/2 = 60
15x^2-5x=120
3x^2-x=24
3x^2-x-24 =o
.solving->x=3
sides 5x=15cm
3x-l=9-l=8 cm
hypoten use=v15^2+8^2 =v 289=17cm
Perimeter=15+8+17=40cm
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