Geometry & MeasuresStudy Notes
Worked Example 2: Finding Area
Part of Circumference & Area of Circles — GCSE Mathematics
This study notes covers Worked Example 2: Finding Area within Circumference & Area of Circles for GCSE Mathematics. Revise Circumference & Area of Circles in Geometry & Measures for GCSE Mathematics with 11 exam-style questions and 7 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 7 of 9 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 7 of 9
Practice
11 questions
Recall
7 flashcards
Worked Example 2: Finding Area
A circle has radius 5 cm. Find its area. Give your answer to 1 decimal place.
Step 1 Write the formula
A = πr²
Step 2 Square the radius first
r² = 5² = 25
Step 3 Multiply by π
A = π × 25 = 78.539... = 78.5 cm² (1 dp)