Trigonometry
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
Easy
Less than a minute
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.
Sign up to access Practice Questions
Get full access to our content with a Mathspace account
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