# Math Help - 107.7?

1. ## 107.7?

how does c^2=(40)^2+(100)^2 equal 107.7

i thought it would be 11600. it was an example given to use by our teacher and it doesnt make ense

2. $c^2=40^2+100^2$

$c=\sqrt{40^2+100^2}$

$c=\sqrt{11600}$

$c=107.7$

3. uh dur... thnx