Description

Resource Description

Area of a Triangle Using Trigonometry – Maths Worksheet Pack

This professionally designed worksheet pack from Anselhill Academy helps students confidently calculate the area of a triangle using trigonometric methods, even when no right angle is present.

The resource is carefully structured to move students from conceptual understanding to exam-ready application, making it ideal for classroom teaching, independent revision, homework, or intervention support.

Students are guided through:

• Why traditional base–height methods do not always apply

• How and when to use the trigonometric area formula

• Multi-step problems that combine angle-finding with area calculation

• Clear worked examples that mirror GCSE exam questions

What’s Included

• Step-by-step explanation of the formula
  Area = ½ ab sin(C)

• Practice questions with increasing difficulty

• Worked examples for:

  • Scalene triangles

  • Isosceles triangles

  • Non-right-angled triangles

• Multi-step problems involving missing angles

• Clean, high-contrast diagrams designed for clarity

• Fully aligned with GCSE exam expectations

Learning Objectives

By the end of this resource, students will be able to:

• Apply the trigonometric area formula correctly

• Calculate the area of different types of triangles

• Identify the correct sides and included angle

• Solve multi-step trigonometry problems confidently

• Prepare effectively for GCSE exam questions

Who This Resource Is For

• KS3 students building foundations in trigonometry

• GCSE Maths students (Higher & Foundation)

• Teachers looking for structured classroom materials

• Tutors delivering 1-to-1 or small group sessions

• Parents supporting home learning

Why Choose Anselhill Academy Resources

• Designed by experienced educators

• Clear layout with minimal cognitive overload

• Exam-focused question design

• Consistent branding and structure across topics

• Trusted by tutors, teachers, and parents