Find the missing angles in each triangle drawn or described below. a. One angle in a triangle is 55°. The ratio of the other two angles is 2:3. What is the measure of each angle? b. A triangle has the following angles: 68° and 23°. What is the measure of the third angle?
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.
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Find the missing
a. One angle in a triangle is 55°. The ratio of the other two angles is 2:3. What is the measure of each angle?
b. A triangle has the following angles: 68° and 23°. What is the measure of the third angle?
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