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This printable worksheet helps students master the basics of trigonometry by calculating sine, cosine, and tangent values for various right-angled triangles using side lengths.

Trigonometry worksheet for high school math featuring six right triangles to practice calculating sine, cosine, and tangent ratios in fraction form.

Trigonometry worksheet for high school math featuring six right triangles to practice calculating sine, cosine, and tangent ratios in fraction form.

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Show Answer Key & Explanations Step-by-step solution for: Introduction to Trigonometric Ratios - Practice
I'll solve the trigonometric ratios for each of the six triangles shown in the image. Let me work through them one by one.

Triangle 1:


This is a right triangle with sides 3, 4, and 5 (hypotenuse).
- sin A = opposite/hypotenuse = 3/5
- cos A = adjacent/hypotenuse = 4/5
- tan A = opposite/adjacent = 3/4

Triangle 2:


This is a right triangle with sides 8, 15, and 17 (hypotenuse).
- sin F = opposite/hypotenuse = 8/17
- cos F = adjacent/hypotenuse = 15/17
- tan F = opposite/adjacent = 8/15

Triangle 3:


This is a right triangle with sides 5, 12, and 13 (hypotenuse).
- sin H = opposite/hypotenuse = 5/13
- cos H = adjacent/hypotenuse = 12/13
- tan H = opposite/adjacent = 5/12

Triangle 4:


This is a right triangle with sides 6, 8, and 10 (hypotenuse).
- sin M = opposite/hypotenuse = 6/10 = 3/5
- cos M = adjacent/hypotenuse = 8/10 = 4/5
- tan M = opposite/adjacent = 6/8 = 3/4

Triangle 5:


This is a right triangle with sides 9, 12, and 15 (hypotenuse).
- sin P = opposite/hypotenuse = 9/15 = 3/5
- cos P = adjacent/hypotenuse = 12/15 = 4/5
- tan P = opposite/adjacent = 9/12 = 3/4

Triangle 6:


This is a right triangle with sides 14, 48, and 50 (hypotenuse).
- sin S = opposite/hypotenuse = 14/50 = 7/25
- cos S = adjacent/hypotenuse = 48/50 = 24/25
- tan S = opposite/adjacent = 14/48 = 7/24

The solutions are based on the standard trigonometric definitions:
- sine = opposite side / hypotenuse
- cosine = adjacent side / hypotenuse
- tangent = opposite side / adjacent side

All answers are given as fractions in simplest form as requested in the instructions.
Parent Tip: Review the logic above to help your child master the concept of trig ratios practice worksheet.
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