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Trigonometry
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India
Class X

Side lengths with exact values

Lesson
Practice

Interactive practice questions

Find the length of side $h$h.

A right-angled triangle, ABC, has its right angle at vertex B. The other two interior angles are angle C that measures degrees(60) and angle A that measures degrees(30). Side interval(AB) that measures $\sqrt{3}$√3 units is opposite to angle C and adjacent to angle A. Side interval(BC) that measures $h$h units is opposite to angle A and adjacent to angle C. Side interval(AC) is the hypotenuse with a hash mark but is not labeled.
Easy
1min

Consider the adjacent figure:

Easy
1min

Consider the adjacent figure:

Easy
1min

Find the length of side $x$x, leaving your answer as an exact value.

Easy
1min
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Outcomes

10.T.IT.1

Trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined); motivate the ratios, whichever are defined at 0° and 90°. Values (with proofs) of the trigonometric ratios of 30°, 45° and 60°. Relationships between the ratios.

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