Question

If the area of the following figure is 46 square centimeters, what is the height of the trapezoid?

4 cm
2 cm
5.75 cm
3.1 cm

Answer 1

5.75

Answer 2

I need the figure to answer this. @MaThWiZzz, it's against CoC to just give the answer without explanation. You can't really just answer it at all.

Answer 3

ok mister ik everything

Answer 4

I do know everything.

Answer 5

lol no u dont u a dumb kid that needs help with life

Answer 6

alright alright guys. can MaThWiZzz explain how he got that answer to help me in the future when i come across a question like this again

Answer 7

@k3nzi14 The area of a trapezoid is 1/2 times its height times the SUM of its bases

Answer 8

see i was right @TrashMan914

Answer 9

I did not say you were wrong, I'm saying you're breaking CoC. Your negative attitude and vulgarity won't get you far on this site.

Answer 10

46 = 1/2 * h * (15 + 8)

@k3nzi14

Answer 11

Solve for h.

Answer 12

Thank you Directrix and MaThWiZzz for all of your help.

Answer 13

@MaThWiZzz
It doesn't matter if you were right or not. What matters is TEACHING PEOPLE HOW TO THINK.
Unfortunately this site seems overrun by dimwits who like to just give out the answers to problems as though they think they're accomplishing something useful.

Answer 14

lol bro u sound like a kid that is stuck in his room all day on the computer and cant get a girl llol

Answer 15

@k3nzi14 How about working the problem and ignoring the distractions.

Answer 16

ikr @Directrix

Answer 17

Have you solved the equation? I lost track with the disruption.

Answer 18

46 = 1/2 * h * (15 + 8)

Answer 19

40=1/2x5.75x(23)

Answer 20

What happened to the h variable?

Answer 21

i plugged in 5.75.

Answer 22

46 = 1/2 * h * (15 + 8)
92 = h*(23)
h = 92/23
h = ?

Answer 23

92 divided by 23 is 4

Answer 24

92/23 = 4 for h. What's wrong with my work? @k3nzi14

Answer 25

wait im confused.

Answer 26

Why did you do this: plugged in 5.75.

Answer 27

I suggest that you work through the equations and not substitute in possible answers in a multiple choice situation. It is a valid strategy for getting the answer but we want to strengthen algebra skills. I realize there may be a time factor to consider.

Let's wrap this up. Where is your work for solving the equation?

Answer 28

okay 1/2x 23x 4= 46

Answer 29

One point: in an equation, do not use x to represent two different concepts.

In this case, x represents multiplication and also represents x, the height of the trapezoid.

Answer 30

no x only represents times... nothing else

Answer 31

I hear you on the x comment.

1/2*h *23= 46
Double both sides to clear the 1/2

h * 23 = 46
h = 46/23 = 4

Answer 32

if a = .5h(15+8)
then:
.5h = a\(15+8)
so:
h = 2(a\(15+8))

Answer 33

okay i am pretty sure i got it... the answer would be four right?

Answer 34

Yes, that is what I got.

Answer 35

Alright thank you guys for your time and help(=