Find the exact length of the third side.

50

Step-by-step explanation:

Using the pythagorean theorem:

a²+b²=c²

30²+40²=c²

900+1600=c²

c²=2500

c=50

i need a picure

step-by-step explanation:

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.