Asked by sayan

Find area of triangle. Sides=12cm,9.2cm and 7.2cm
Answered by collins
use hero's formula
sum all the side
a+b+c/2=s

now evaluate

area=√[s(s-a)(s-b)(s-c)]

good luck
Answered by Reiny
collins meant:
(a+b+c)/2 = s
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