Trigonometry
Interactive practice questions
Find the length of $a$a using the cosine rule.
Round your answer to two decimal places.
Easy
Approx 4 minutes
Find the length of $a$a using the cosine rule.
Round your answer to two decimal places.
Find the length of $a$a using the cosine rule.
Round your answer to two decimal places.
Find the length of $q$q using the cosine rule.
Round your answer to two decimal places.
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Outcomes
10D.T3.02
Explore the development of the cosine 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