This worksheet is designed to guide learners through the application of the sine rule to determine unknown angles in non-right-angled triangles. The worksheet is structured into three sections, providing a clear progression from guided practice to independent problem-solving.
In Section A, students begin by labelling triangles appropriately, ensuring they can correctly identify sides and angles before substituting values into the sine rule formula.
Section B is a fill-in-the-gap exercise where students complete missing steps in sine rule calculations to find unknown angles. These structured problems reinforce the correct sequence of operations while allowing learners to focus on understanding the application of the formula.
Section C presents more complex problems where students apply the sine rule independently to determine missing angles. One problem requires the use of exact values.
The mix of guided and independent tasks ensures that students develop a deep understanding of the sine rule.
