Question

Find the area of a triangle whose sides are 150cm 120cm x 90cm

Answer 1

a= 150
b= 120
c= 90
semi-perimeter = 150+120+90 divided by 2
= 180
By herons formula
 A of triangle = $\sqrt{x} s(s-a)(s-b)(s-c)$
=[tex] \sqrt{x} 180(180-150)(180-120)(180-90) [/tex]
= $\sqrt{x} 180*30*60*90$
=100*3*2*3*3
=5400
 hope it helps..
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