Areas of Composite Shapes
Find the areas of combined shapes made up of one or more simple polygons and circles
This is level 2; Using letters to show how the areas of composite shapes are calculated.
If the area of
a and the area of
is b then the area of this compound
shape is 2a - b. Find the simplest way of expressing the areas of these shapes:
Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.
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Comment recorded on the 1 February 'Starter of the Day' page by M Chant, Chase Lane School Harwich:
"My year five children look forward to their daily challenge and enjoy the problems as much as I do. A great resource - thanks a million."
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"This is a great memory aid which could be used for formulae or key facts etc - in any subject area. The PICTURE is such an aid to remembering where each number or group of numbers is - my pupils love it!
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© Transum Mathematics :: This activity can be found online at:
Level 1 - A reminder of the area formulas for basic shapes
Level 2 - Using letters to show how the areas of composite shapes are calculated
Level 3 - Composite shapes made up of rectangles
Level 4 - Composite shapes made up of quadrilaterals, triangles and circles
Level 5 - Real life composite area questions from photographs
Level 6 - Some puzzling composite area questions designed to challenge
Exam Style questions are in the style of GCSE or IB/A-level exam paper questions and worked solutions are available for Transum subscribers.