Question

The diagram shows an 8-foot ladder leaning
against a wall. The ladder makes a 53� angle
with the wall. Which is closest to the distance
up the wall the ladder reaches?

Answer 1

Adjacent side, Opposite side, Hypotenuse. Could you point out which of those sides is which?

Answer 2

c is what i get

Answer 3

cause it would be 8Sin(53

Answer 4

Sin, eh? Yousure?

Answer 5

pretty sure...

Answer 6

the opposite side is the one with the question mark, the side with the 8 is the Hypotenuse, and the Adjacent side is the one on the bottom. right?

Answer 7

yep, I am right

Answer 8

yes, thanks robby

Answer 9

The 8 is definitely the hypotenuse. Adjacent means next to, and we're talking about the angle we know, which is 53. So the adjacent side is actually the one with the question mark. The wall.

Answer 10

Lol, you're both wrong. That's cool though.

Answer 11

whaa?

Answer 12

wait...

Answer 13

lol ok at least i got the Hypo right :P

Answer 14

so it is cos?

Answer 15

Yes. The hypotenuse is 8, and the side we're trying to figure out is the adjacent side. So which trig function uses adjacent and hypotenuse? That's the one we want.

Answer 16

is that tan?

Answer 17

no....its wrong huh...

Answer 18

cos

Answer 19

adj/hop

Answer 20

Tangent is Opposite/Adjacent.
Sin is Opposite/Hypotenuse.
Cos is Adjacent/Hypotenuse.

Answer 21

thanks, i always get those mixed up

Answer 22

Okay, so we picked out Cos. Now, let's write something like:
Cos(53) = A/H
Cos(53) = A/8
Solve for A

Answer 23

brilliant

Answer 24

i did cos(53) and got 0.6018... is that right so far?

Answer 25

it is 8Cos(53)

Answer 26

Yes =)
So now your equation says
0.6018 = A/8
because you did cos(53)

Answer 27

multiply both sides of "Cos(53) = A/8" by 8

Answer 28

So it's 4.8?

Answer 29

yes

Answer 30

coolio! thanks john, now ik how to do it :)

Answer 31

and thanks doom :)

Answer 32

u guys r a big help

Answer 33

no problem ;)

Answer 34

My pleasure =D