Question

In triangle PQR, 12 years ago

Answer 1

first u should find area..by Heron's formula..

Answer 2

do u know heron's formula?

Answer 3

no

Answer 4

s=\[s=\frac{ a+b+c }{ 2 }\]
and area=\[\sqrt{s(s-a)(s-b)(s-c)}\]

Answer 5

use this.. and find answer

Answer 6

Can u find it now?

Answer 7

i dont think i can use that. I have never learned that. i think we have to use the pythagorean therem somehow because that is what the lesson is about

Answer 8

ok