This worksheet focuses solely on using the Sine rule to calculate missing lengths in non-right-angled triangles. It is divided into three clear sections, ensuring a gradual build-up of understanding and skill.
In Section A, students begin by labelling triangles correctly, reinforcing their ability to set up and use the sine rule effectively. This step is crucial in developing confidence with the formula before applying calculations.
Section B presents fill-in-the-gap problems where students substitute values and solve for missing lengths. This scaffolded approach helps learners focus on the method without getting overwhelmed by full problem-solving tasks.
Section C contains more challenging problems, requiring students to find missing sides in various triangles using the sine rule. One question requires learners to use exact values.
The structured progression and variety of problems make it ideal for classwork, revision, or homework.