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Grade 10

Sine Law

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?

No

A

Yes

B

No

A

Yes

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

Round your answer to two decimal places.

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

Write your answer correct to two decimal places.

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

Round your answer to one decimal place.

Outcomes

10D.T3.01

Explore the development of the sine law within acute triangles

10D.T3.03

Determine the measures of sides and angles in acute triangles, using the sine law and the cosine law

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