Back to Understand trigonometric ratios — Problem 2 · Task Set 19

Exercises: Understand Trigonometric Ratios

Show your work for each problem. Round decimal answers to the nearest hundredth unless otherwise stated.

Grade 9·22 problems·~30 min·Common Core Math - HS Geometry·standard·hsg-srt-c-6
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Fluency Practice

Calculate the trigonometric ratios. Express answers as fractions or decimals rounded to the nearest hundredth.

1.

Using the same triangle (sides 3, 4, 5 with right angle at CC), what is cos(A)\cos(A)? Express as a fraction.