Question

A triangle has a leg that measures fifteen and a hypotenuse of twenty-three. Which leg measure would form a right triangle?

fifteen

thirty-nine

square root of three hundred four

the square root of seven hundred eighty-five

Answer 1

@sammixboo @HelpBlahBlahBlah @kewlgeek555 @Destinymasha @d3Xter @SeaTurtle113 @arabpride

Answer 2

Please help

Answer 3

Know pythagoras?

Answer 4

Do you mean a^2+ b^2= c^2?

Answer 5

\[x^2 = 23^2 - 15^2 \rightarrow x = \sqrt{529-225}\]

Answer 6

Evaluate the expression. There's your answer :)

Answer 7

Okay...

Answer 8

Use the Pythagoras formula: x^2 = (23)^2 - (15)^2 = 304
x = V304 = ....

Answer 9

I didn't learn that though...

Answer 10

It's basically the same as this a^2+ b^2= c^2, but in this case we're looking for a^2. See?

Answer 11

Okay

Answer 12

What is x then?

Answer 13

So couldn't I use c^2-b^2= a^2?

Answer 14

And x is a^2

Answer 15

Exactly, then you'd take square root of both sides to get just a

Answer 16

c^2= 23^2 b^2= 15

Answer 17

I substituted x for a

Answer 18

yes, ... b^2 = 15^2

Answer 19

23^2- 15^2= 8^2
--------
Now, the square root of 8^2

Answer 20

So 8*8= 64

Answer 21

No, evaluate 23^2 before subtracting

Answer 22

Evaluate?

Answer 23

Ohhhh nvm

Answer 24

So, you have 529 - 225

Answer 25

Can't you do it either way?

Answer 26

Wait no

Answer 27

No, you can't! It's against the rules of mathematics.

Answer 28

I know... sorry I answered myself right after I asked

Answer 29

So sqrt of 304?

Answer 30

Good, what is it?

Answer 31

It doesn't require that... but it's around 17.43

Answer 32

Okay, I see your options were just left at that point. There's your answer!

Answer 33

Thank you!

Answer 34

Yw :)

Answer 35

Sorry to be a pain!