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\nInside Maths: Areas of Circles and Composite Shapes\n

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\nKS4 maths: Dave works out how much it will cost to tile a bathroom, a job that is made more complicated as the owner keeps changing the shape of the mirror she wants on the wall. Fran's friend wants to know how much it will cost to...\nKS4 maths: Dave works out how much it will cost to tile a bathroom, a job that is made more complicated as the owner keeps changing the shape of the mirror she wants on the wall. Fran's friend wants to know how much it will cost to re-tile her bathroom. Dave is promised a home-made cookie if he is able to cost it. Dave wants the larger of two cookies, but to work out which one is the bigger he needs to work out their surface areas. As Dave heads off to check out the bathroom, Fran goes through the formulae for different shapes. Dave arrives at the house. His first task is to work out the area of the walls to be covered by tiles, a job that is complicated by a mirror and windows. In the studio, Fran goes in detail through how to work out the area of the walls, then changes the figure when her friend decides she wants a circular and then arched mirror. With the area of the wall calculated, Dave works out the cost and is rewarded with the circular cookie, which he worked out was the larger. When the cookie arrives it is considerably smaller than he expected...Did he get the formula for the area?\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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13:44
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Grade
Higher Ed
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Subjects
Math
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Media Type
Instructional Videos
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Source:
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\nProTeachersVideo\n\n
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Date
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2009
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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dimensions, height, area
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Additional Tags

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circular mirror, circle, square centimeters, triangle, circular cookie, windows mirror, total area, easy, squared, square, 12 centimeters, teacherstv, world, 8 centimeters, times, covered, wall, tile, mirror, friend, tiles, make, length times, half, biggest, square meters, dave, areas, teachers tv
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Classroom Considerations

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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Inside Maths: Areas of Circles and Composite Shapes\" href=\"/subscription/new\">\"Inside\n\n
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