Question

I need serious help! I don't understand this at all!
Someone please!

Answer 1

http://prntscr.com/d5d4p9

Answer 2

use Pythagorean theorem

Answer 3

I don't know how! :(

Answer 4

a^2+b^2=c^2
where c is the longest side of right triangle in this case length of diagonal

Answer 5

So once I solve it after that, do I get my equation?

Answer 6

http://prnt.sc/d5dawd diagonal

Answer 7

wait

Answer 8

Yes?

Answer 9

hmm i was trying to attach file hmm nvm
do you know what diagonal is ?

Answer 10

Yes

Answer 11

well i gtg in few minutes
so hmm diagoonal is a line that intersects the opposite corner of a square http://prnt.sc/d5dd4l

Answer 12

okay

Answer 13

http://prnt.sc/d5ddcd find the length of SQ diagonal ( hypotenuse of red right triangle )

Answer 14

Okay, and how do I do that? I'm really lost

Answer 15

http://prnt.sc/d5ddy1

Answer 16

w0hoh look at there that's the Pythagorean theorem now all you need to do is take the s square root both sides to find the length

Answer 17

Okay? I'm still not quite sure.

Answer 18

do you know distance formula ??
you can apply that use the points S(0,0) Q(a,b)
which is same as Pythagorean theorem

Answer 19

Okay, yes that might work :)

Answer 20

hmm that's it all you have to do is find the equation that can help you to find the length of diagonal which is Pythagorean theorem

Answer 21

How do i set up the equation?

Answer 22

\[\large \rm d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]
plug in (0,0)(a,b) coordinates

Answer 23

Okay woould I get \[d=\sqrt{b^2+a^2}\]

Answer 24

yes right that's the length of that line

Answer 25

do I further simplify or do I just leave it at that.

Answer 26

isn't that the same as Pythagorean theorem if you solve it for c \[a^2+b^2=c^2 \rightarrow ~~~ c=\sqrt{a^2+b^2}\]

Answer 27

no that's it for the next questions when they give you numbers for a and b
just plug them into that equation to find the length of diagonal

Answer 28

Yes, it think

Answer 29

it is
d for distance
c represent the hypotenuse same idea just different letters

Answer 30

Okay! thanks for help Nnesha!

Answer 31

yw!! :=))