00:01
Okay, so suppose i have a right triangle here.
00:02
And in a right triangle, i could do a lot of things.
00:04
I could use the pythagorean theorem to find the missing side lengths.
00:08
So what's the pythagorean theorem? well, one side squared, one leg squared plus another leg squared, equals the hypotenuse squared.
00:16
So i could just solve this.
00:18
What's 15 squared? 15 squared is approximately 225 plus 8 squared as 64, equals c squared.
00:26
Add those two together.
00:28
289 equals c squared.
00:30
Kind of get rid of that squared.
00:31
What's the inverse of squared? square root.
00:35
And this will be approximately 17.
00:38
Okay.
00:38
So this is 17.
00:40
And then i could find sine, cosine, tangent, all of these of each of the angles.
00:44
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