Last week in Section 3.1 you learned how to find the area of an oblique triangle using A = absinC This week in Section 3.2 you learn about a new method to use when you are given 3 side lengths of an oblique triangle, called Heron's formula K = 's (s — а) (8 — b) (s — с) S (S - - where a+b+c S = 2 . If you were given the following information about an oblique triangle A = 110°; a = 12.2, 6 = 9.02 which of these two methods would you use to find it's area?
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
1- which method you would use and why?
2- what sides or
3- how would you find what are missing ? Side or angle.
Using your preferred method. Find the area of the
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