The sides of a triangle are in the ratio 5: 12: 13 and its perimeter is 300 m, its area is?
3000 sq m
3127 sq m
3225 sq m
3750 sq m
Explanation:
5x + 12x + 13x = 300 => x = 10
a = 50, b = 120, c = 130
S = (50 + 120 + 130)/2 = 150
$\sqrt{150\times100\times30\times20}\rightarrow3000$