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Trigonometry
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India
Class X

Sine rule - the ambiguous case

Lesson
Practice

Interactive practice questions

Find the value of $x$x using the sine rule, noting that $x$x is acute.

Round your answer to two decimal places.

A triangle with one angle at the top labeled as 48 degrees. Opposite this angle, the side is labeled as 72 m. The angle opposite the 75 m side is labeled with $x$x degrees. The remaining side and angle are not labeled.

 

Easy
2min

Consider $\triangle ABC$△ABC below:

Easy
5min

Find the value of $x$x using the sine rule, noting that $x$x is obtuse.

Round your answer to two decimal places.

Easy
3min

Find the value of $x$x using the sine rule, noting that $x$x is obtuse.

Round your answer to two decimal places.

Easy
3min
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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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