Question

the sides of a triangle are 8cm,11cm and 13cm.what. is it's area
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Answer 1

Answer:

Explanation:

given a=8,b=11,c=13

s=(a+b+c)/2=19+13)/2=16

area=sqrt(s*(s-a)*(s-b)*(s-c))

=sqrt(16*8*5*3)

=43.8

Answer 2

Answer:

79.59,(approx)

Explanation:

by herons formula