The basic trig functions can be defined with ratios created by dividing the lengths of the sides of a right triangle in a specific order. The label hypotenuse always remains the same — it’s the longest side. But the designations of opposite and adjacent can change — depending on which angle you’re referring to at the time. The opposite side is always that side that doesn’t help make up the angle, and the adjacent side is always one of the sides of the angle
To SOLVE A TRIANGLE means to know all three sides and all
three angles. When we know the ratios of
the sides, we use the method of similar figures. That is the method to use when solving an
isosceles right triangle or a 30°-60°-90° triangle. When we do not know the ratio numbers, then
we must use the Table of ratios.
when you know 2 angles you can find the third :3
When
there is an angle opposite a side
when you know 2 angles you can find the third :3
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