Question

Find the area of the triangle. Round to the nearest tenth. a=28.5 b=33.4 c=22.3

Answer 1

for this case we can use the Herons formula given by:

`A=\sqrt[]{s(s-a)(s-b)(s-c)}`

Where s is the semiperimeter given by:

`s=(a+b+c)/(2)=(33.4+28.5+22.3)/(2)=42.1`

And we can find the area on this way:

`A=\sqrt[]{42.1(42.1-33.4)(42.1-28.5)(42.1-22.3)}=314.05`

And rounded to the nearest tenth would be:

314.1