Question

Medal for helping me with this problem.

Answer 1

@Daniel56k

Answer 2

Ok, so first let's use the pythagorean theorem to find all the lengths of the triangle. Do you know how to do that?

Answer 3

I'll try.

Answer 4

Remember,
\[a^2+b^2=c^2\]
Where a and b are sides, and c is the hypoteneuse.

Answer 5

He his correct with the diagram and formula

Answer 6

@malcolmmcswain i will give u a medal for that

Answer 7

6 2/3+3=\[\frac{ 481 }{ 9 }\]

Answer 8

6 2/3^2 = 44 4/9
3^2 = 9

Add them together.
44 4/9 + 9 = 53 4/9

Now, take the square root of that:
approx. = 7.31

Answer 9

Anyway, now we need to find the area.

Answer 10

Do you know the formula for finding the area of a triangle?

Answer 11

\[\frac{ 1 }{ 2 }*b*h\]

Answer 12

Correct.
So, we multiply:
\[\frac{1}{2} * 3 * 6 \frac{2}{3}\]

Answer 13

which gives us?

Answer 14

10! :)

Answer 15

correct. However, we're not done yet.

Answer 16

we have 10 square meters, so if it costs $40 per square meter, how much will it cost us?

Answer 17

I'm assuming it would be...40*10 which would give us 400.

Answer 18

Correct :D

Answer 19

:O It's incorrect.

Answer 20

What? Hold on, let me see.

Answer 21

OH NO! I MADE A HUGE MISTAKE

Answer 22

I was calculating the area of this triangle: http://prntscr.com/9punaj
When I should have been calculating the area of this parallelogram: http://prntscr.com/9puno1

Answer 23

I'm so sorry. ;~;

Answer 24

It's alright... I'll just have to find some way to get three in a row (khan). I'll have to start over.

Answer 25

lol I love khan academy

Answer 26

If there's any more you need help with, please let me know. This time I'll try to do better. :P