Question

Find the length of line segment XY.

A. 4
B. 11.5
C. 25.4
D. 22.7

Answer 1

hmm do you know about pythagores theroem?

Answer 2

i have seen it and everything but i am not good with it . how would i find the length of XY ?

Answer 3

ok.. formula is
hyp^2 = base^2+perp ^2
so the lines which makes angle 90 degree( in your case point Z) are perpendicular and base..
so your base =15
perpendicular =17
can you do now?

Answer 4

hmmm...

Answer 5

ok i'm confused on how to set it all up and how to solve it .

Answer 6

you just now have to plug in the values.. nothing else.

Answer 7

ok which part exactly you didn't get?

Answer 8

how to put it all in equation form and solve it .

Answer 9

ok i told you what is base and perpendicular in this equation right?

Answer 10

yes .

Answer 11

Hey @alainabbyboo22 it's that same formula we just talked about...

@nubeer is just naming the a, b, and c as "base", "perp", and "hyp"

Answer 12

so c^2 = 15^2 + 17^2 ?

Answer 13

yes there you go :)

Answer 14

this "c" is your length XY, the one u have to find.

Answer 15

i got 514 .. how does that work ?

Answer 16

514 is "c squared"

You need just plain "c"

Answer 17

yes so c^2 =514
now take square root on both sides.

Answer 18

now i'm lost .

Answer 19

hmm basically 514 is c^2.. means "c" has a power of 2 right now.. so you have to get plain "c" .. to get that plain c u have to take square root on both sides..

Answer 20

22.7 !!

Answer 21

something like this.. get it?