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Area of a Triangle Using the Sine Rule•
Sine and Cosine Rules•
Trigonometry

Choosing the Correct Trig Rule WORKSHEET

Suitable for Year groups: Year 10, Year 11
GCSE Tier: Higher
Targeting grades: 6-7
Prerequisite knowledge: Sine rule, cosine rule.
Learning Objective: Choosing which of the sine rule or cosine rule to use for different triangle problems

Choosing the Correct Trig Rule WORKSHEET DESCRIPTION

This worksheet is perfect for consolidating the skills of using the sine and cosine rules and can later be used as a guide for future questions.

Learners are presented with 6 triangles with ticks and question marks providing what information has been given and what is required.

There are also 6 methods provided which need to be matched to the diagrams using a line. Learners will need to think about what steps are required to find the missing value based on the information provided.

All worksheets are created by the team of experienced teachers at Cazoom Maths.

Choosing the Correct Trig Rule worksheet suitable for students in year 10 and 11

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Frequently Asked Questions

This resource targets grades 6-7, making it suitable for higher-achieving students who are working towards the upper end of the GCSE grade scale. The focus on selecting between trigonometric rules requires the analytical thinking typically expected at these grade levels.