Topics
Trigonometry
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CanadaON
Grade 10

Evaluate sine, cosine and tangent ratios

Lesson
Practice

Interactive practice questions

Write down the ratio of the sides represented by $\sin\theta$sinθ.

A right triangle labeled with vertices A, B, and C. The right angle is located at vertex C as indicated by the small square. Side AB is opposite vertex C, and is the hypotenuse. Each of the non-right angles is marked with a small arc near the vertex. The triangle has two angles labeled: angle $\alpha$α at vertex A and angle $\theta$θ at vertex B. Side BC is adjacent to angle $\theta$θ. Side AC is opposite angle $\theta$θ.
Easy
1min

Write down the ratio represented by $\tan\theta$tanθ.

Easy
< 1min

Write down the ratio represented by $\cos\theta$cosθ.

Easy
< 1min

Write down the ratio represented by $\sin\theta$sinθ.

Easy
< 1min
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Outcomes

10P.MT2.01

Determine, through investigation, the relationship between the ratio of two sides in a right triangle and the ratio of the two corresponding sides in a similar right triangle, and define the sine, cosine, and tangent ratios

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