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Derive a formula for finding the area of any kite.

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The Pi Are Square

A circle with the radius of 2.2 centimetres is drawn touching the sides of a square. What area of the square is NOT covered by the circle?

All in a Jumble

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Chelsea from the Thomas Deacon Academy suggested a strategy for tackling this problem:

To solve All in a Jumble you must first solve the common sense solutions which you already know of.
This may take some of the jumbled questions off your list.

Secondly you cross off the answers you definitely know are incorrect.

You may have about 5-6 questions left. If you do not know these then you could take a guess.
At least you know you have got most of the questions right by common sense!