11 Plus (11+) Maths Practice Test: Perimeter and Area (Medium) — Flashcards | Eleven-Plus (11+) | FatSkills

11 Plus (11+) Maths Practice Test: Perimeter and Area (Medium) — Flashcards

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When dealing with circles, you will need to use π (pi). This is a mathematical constant used to calculate the circumference and the area of circles. Remember it to three decimal places at least.

Here’s pi to 100 decimal places, just in case you'd like to memorise it:
3.141592653589793238462643383279502884197169399375105820974
9445923078164062862089986280348253421170679

Related Test:

11 Plus (11+) Maths Practice Test: Perimeter and Area (Very Easy)

11 Plus (11+) Maths Practice Test: Perimeter and Area (Easy)

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A nonagon is a nine-sided shape. What is the perimeter of a regular nonagon if one of its sides is of length 8 cm?
72 cm
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