Posted by Louis on Tuesday, September 4, 2007 at 6:56pm.
Akite is 15m up in the sky. The angle the string makes with the ground is 50 degrees. How long is the kite string?

Math  Michael, Tuesday, September 4, 2007 at 7:00pm
A picture would help with this one...
It's going to be a right triangle. The height is going to be 15m. The lower angle is 50 degrees. We're trying to find the hypotenuse, so assign that a variable like x. You can use the sine function, which I'm sure you learned in class for this. Sine is opposite over hypotenuse.
sin 50 = 15/x
Solve that equation for your answer.

Math  Marty, Tuesday, September 4, 2007 at 7:01pm
You have to use SINE.
If you draw a diagram you know that we are looking for the hypotenuse.
Therefore sin50=15/x
0.766=15/x
0.766x=15 (divide by 0.766 to isolate x)
x=19.58
so the kite string is 19.58m long
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