Question

What is the value of x for the triangle below?
Picture will be in the comments

Answer 1

sin45=12/x

Answer 2

yea that sounds right

Answer 3

sin45=12/x

Answer 4

That's a right isosceles. The 2 angle that are no right are equal.

Which means that both legs are the same length.

Pythagoras sez that the length of side x^2 is equal to the sum of the squares of the sides.

Answer 5

Stupid keyboard... "The 2 angles that are not right are equal."

Answer 6

so... do i listen to doppler.. or the other guy.. like idk whos right

Answer 7

Do the math.

Then you'll see which one to listen to.

sin(45) DOES equal 12/x, but it's not a whole lot of help.

Mine tells you straight up what the unmarked side's length is, and from there it's easy to find x since it's the hypotenuse.

Answer 8

i got 12 root 2

Answer 9

thats the correct answer

Answer 10

Listen up...

You have a right triangle with a 90 degree angle and a 45 degree angle.

That means that the 3rd angle HAS to also be 45 degrees.

If both angles are 45 degrees, then both legs are the same length.

If one leg is given to you as "12", then the OTHER leg must ALSO be "12"

If the square of one leg is 144, then the square of the other leg is also 144.

144 + 144 = 288

288 is the SQUARE of the hypotenuse, which just happens to be x

So the length of x must be the square root of 288.

Right?

Answer 11

yup, 16.9 or 12 root 2.

Answer 12

16.970....

Answer 13

16.970 is correct, but that's the square root of 288, not 12

What does "12 root 2" mean?