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10.03 Sine, cosine, and tangent ratios

Interactive practice questions

Identify the angle that is opposite the hypotenuse.

A right triangle $ABC$ABC is depicted with the right angle located at vertex $C$C. The triangle is oriented such that vertex $A$A is at the top, vertex $B$B is at the bottom left, and vertex $C$C is at the bottom right. $\angle BAC$BAC has a measurement of θ degrees, and $\angle ABC$ABC has a measurement of ɑ degrees. Side $AB$AB is opposite of the right angle $ACB$ACB. Side $BC$BC is opposite of $\angle BAC$BAC. Side AC is opposite of $\angle ABC$ABC.

$\angle ABC$ABC

A

$\angle CAB$CAB

B

$\angle ACB$ACB

C
Easy
< 1min

Consider the triangle below:

Easy
< 1min

Consider the triangle below:

Easy
< 1min

Using the triangle provided:

Easy
1min
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Outcomes

II.G.SRT.6

Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.

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