What is the area of AABC? 12 am 21 cm Step 1. How do you solve for the area of a triangle? Is there a specific formula? A= lab - sin C Step 2. What information do you need? Draw the height of the triangle and label it h. Step 3. How can we possibly find the height (h)? What type of triangle was forrmed when you drew the height? Can we use trigonometric ratios to determine the height? Explain. Step 4. What trigonometric ratio can we use to solve for h? What is the value of h in terms of a trigonometric function? Step 5. What is the area of the triangle? Use correct unit of measure.
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.
2. What information do you need? Draw the height of the
3. How can we possibly find the height (h)? What type of triangle was formed when you drew the height? Can we use trigonometric ratios to determine the height? Explain.
4. What trigonometric ratio can we use to solve for h? What is the value of h in terms of a trigonometric
5.What is the area of the triangle? Use correct unit of measure.
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