Question

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
https://www.dropbox.com/s/3ozelnzrr6o4qgx/Screenshot%202016-01-17%2013.07.37.png?dl=0

Answer 1

@boldjon are you here ?

Answer 2

yeah

Answer 3

so try writing pythagora for length of hypotenuse and see what will get

Answer 4

uhhhhh how do i do that

Answer 5

so you dont know the Pythagora's theorem in case of a right triangle ?

square of hypothenuse^2 = 1side ^2 +2side^2

yes ?

Answer 6

no i don't

Answer 7

you have learned it sure - because without this theorem this not can solving and then you see these choices there are this theorem used

so what i have wrote above

hypothenuse^2 = a side^2 + b side ^2

10^2 = (x+2)^2 +x^2

so do you see now the right choice ?

Answer 8

kinda

Answer 9

so it asking to find the perimeter?

Answer 10

pretty much gotta find alll the solutions that leads to the answer right?

Answer 11

ok i see it now so than area is 24 how you get the length of sides what equation use for it ?
yes ?

so in this case you need to know formula for area of a rigth triangle - do you know it ?

Answer 12

area = base *height/2

yes ?

Answer 13

1/2bh?

Answer 14

yes than you think that bh is in numerator

Answer 15

so rewriting it

24=x*(x+2)/2

yes ?