Question

Find the area of this trapezoid
http://aplus.yumaed.org/R85Content/media/pictures/geo_nbg/g19_t12a.gif

Answer 1

Find the height of the trapezium, then use the area formula:
height*(average of two parallel sides)

Answer 2

Same as your other question:
\[Area = height*\frac{base1+base2}{2}\]

The bases are the two parallel lines.

Answer 3

I don't really know how to do that. That's where I don't really have a clue. Everyone keeps telling me the same thing but I still don't know.

Answer 4

Don't know what base 1 or 2 is. Don't know which numbers to plug in where.

Answer 5

Base one could be one parallel line, or the other. Doesn't really matter. Do you know what parallel means?

Answer 6

Yes, I know what parallel means.

Answer 7

Ok, so what are the values of the two bases?

Answer 8

6.5 and 7?

Answer 9

Those lines are not parallel to each other.

Answer 10

Ohh, 1 and 6?

Answer 11

the bottom is 6+6, so 12

Answer 12

1 and 12. The bottom base is 6 + 6.

Answer 13

Okay, so I plug those numbers in the formula?

Answer 14

first you have to find the height. Take a look at the right angle triangle

Answer 15

Step 2: Determine the height. The diagram shows that you have a right triangle. One side is of length 6, and the hypotenuse is of length 7.

The Pythagorean theorem states:
\[(side 1)^{2} + (side 2)^{2} = (Hypotenuse)^{2}\]

Answer 16

Use pythagorus to get the missing side

Answer 17

85?

Answer 18

How did you come to get 85? Please show your work. That way we can show you where you went wrong.

Answer 19

All I did was plug in the numbers you said, 7 and 6 into the formula. I am trying to figure this out faster because I'm like timed for this.

Answer 20

Actually, I see what you did. You squared the two numbers you saw and then added them.

Side 1 is at a right angle to side 2. the line in the middle is the hypotenuse.

\[6^{2} + (height)^{2} = 7^{2}\]

Solve for the height.

Answer 21

Are you taking a test, or is it homework?

Answer 22

Honestly, I am still confused. I don't even remember learning this. And it's online school. It's the last lesson of the essentials of algebra. But yeah, it's a test. If I get the first ten questions right, then I don't have to go through the whole lesson and it's due by 12:00 today.

Answer 23

I'm just trying to get this over and done with so I can go to sleep and get the credit.

Answer 24

Use the pythagorean theorem from above to solve for the height. Then put that height and the two bases in the first equation to get the area.