Question

if the sides of a tirangle is 30cm , 28cm and 26cm find the area if the triangle
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Answer 1

Step-by-step explanation:

s=a+b+c/2

s=30+28+26/2

s=84/2

s=42

area= under root s(s-a)+(s-b)+(s-c)

area=under root 42(42-30)+(42-28)+(42-26)

area =under root42(12+14+16)

area=under root42×42

area =42