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Hi, we're looking at question one, and we're looking, first thing you always want to decide is what kind of triangle you have.
00:12
So with special right triangles, there's two.
00:15
There's the 45, 45, 40, 90, and 306090.
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And in this case, we have the 45, 45, 45, 90.
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So what i like to do is make a little sketch to remind myself of the relationships.
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So here's a 45, 45, 90 right triangle.
00:32
Since this is just for yourself, you don't have to be super...