Topics
Trigonometry
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India
Class X

Sine rule

Lesson
Practice

Interactive practice questions

Consider a triangle where all three sides are known, but no angles are known. Is there enough information to find all the angles in the triangle using only the sine rule?

A triangle with sides labeled as a, b, and c.

No

A

Yes

B
Easy
< 1min

Find the side length $a$a using the sine rule.

Round the answer to two decimal places.

Easy
2min

Find the length of side $a$a using the Sine Rule.

Write your answer correct to two decimal places.

Easy
2min

Find the value of the acute angle $x$x using the sine rule.

Round the answer to one decimal place.

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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