Question

what will the area of a triangle whose sides are 40m,49m and 20m

Answer 1

$hey \: user \: here \: is \: your \: answer \\ \\ s \: = (a + b + c)/2$

s = (40 + 49 + 20)/2

= 109/2

=54.5

area = √s(s-a)(s-b)(s-c)

= √54.5 ( 54.5 - 40)( 54.5 - 49) (54.5 -20)

= 20311.782m²