Anonymous
Math Trig Ratios Question???
Determine the sin, cos and tan of the marked angle. Then determine the measure of the marked angle.

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- oldprofLv 76 months agoFavorite Answer
Sine == opposite/hypotenuse = 2/sqrt(29)
Cosine == adjacent/hypotenuse = 5/sqrt(29)
Tangent == sine/cosine = opposite/adjacent = 2/5
theta = ASIN(2/sqrt(29)) = 20.4 degs.
- rotchmLv 76 months ago
This is a right triangle, yes?
The sin of the drawn θ is the length of the opposite side divided by the hypotenuse. What do you get?
Whats the "formula", the rule for a cos ? For a tan?
Your answers will follow.
Of course its a right triangle; that's what the box in one corner means. Standard notation.
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Yep, my bad. TX.