Area, Perimeter, Surface Area & Volume is one of 8 topics in the Grade 9 Mathematics CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. Find the area of a rectangle with length 12cm and breadth 7cm.
Answer: 84 — Area = l x b = 12x7 = 84cm^2.
Easy
2. Find the area of a circle with radius 5cm, using π≈3.14, rounded to 2 decimal places.
Answer: 78.5 — Area = pi x r^2 = 3.14 x 25 = 78.5cm^2.
Medium
3. Convert 3m2 to cm2.
Answer: 30000 — 1m^2=10000cm^2. So 3m^2 = 3x10000 = 30000cm^2.
