The smart way to improve grades

Comprehensive & curriculum aligned

Affordable pricing from £10/month

Find Areas of Circles Using Their Radiuses

In this worksheet, students find the areas of circles given their radiuses.

'Find Areas of Circles Using Their Radiuses' worksheet

Key stage:  KS 3

Curriculum topic:  Geometry and Measures

Curriculum subtopic:  Solve Problems Involving Perimeters and Areas of 2D Shapes

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

This worksheet is about finding the areas of circles.

 

You must learn this important formula for a circle of radius, r :

Area of a circle = π r2

 

 

Example

Find the area of a circle of radius 6 cm.

 

Answer

Area = π r2 =  π × 62 = π × 36 = 113.1 cm2  (1 dp)

Find the area of a circle of radius 10 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 2 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 5 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 6 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 16 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 25 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 5.8 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 12.4 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 0.5 cm in cm2.

Just write the number to 1 decimal place.

Find the area of a circle of radius 3.99 cm in cm2.

Just write the number to 1 decimal place.

  • Question 1

Find the area of a circle of radius 10 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
314.2
  • Question 2

Find the area of a circle of radius 2 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
12.6
  • Question 3

Find the area of a circle of radius 5 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
78.5
  • Question 4

Find the area of a circle of radius 6 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
113.1
  • Question 5

Find the area of a circle of radius 16 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
804.2
  • Question 6

Find the area of a circle of radius 25 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
1963.5
  • Question 7

Find the area of a circle of radius 5.8 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
105.7
  • Question 8

Find the area of a circle of radius 12.4 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
483.1
  • Question 9

Find the area of a circle of radius 0.5 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
0.8
  • Question 10

Find the area of a circle of radius 3.99 cm in cm2.

Just write the number to 1 decimal place.

CORRECT ANSWER
50.0
---- OR ----

Sign up for a £1 trial so you can track and measure your child's progress on this activity.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Start your £1 trial

Start your trial for £1