Write an equation, and solve for the missing angle in each question. 1. Alejandro is repairing a stained glass window. He needs to take it apart to repair it. Before taking it apart, he mak a sketch with angle measures to put it back together. Write an equation, and use it to determine the measure of the unknown angle. 40 30

Q: 62 mm S T 65 mm 37 mm U

A: To write the equation which can be used to find the angle S

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A: The solution as follows :-

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Q: D 14, 19 29

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Q: Determine if the two triangles are similar or not. а. X J 32% 32° K 96° 52°

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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.