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GCSE Maths Practice: polygons

Question 1 of 10

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\( \begin{array}{l}\text{A regular polygon has interior angles of } 135^\circ.\\ \text{How many sides does it have?}\end{array} \)

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Input Tips:

Use = for equality, ≠ for not equal.
Use pi or click π to insert π.
Use ^ for powers, e.g. x^2.
Use sqrt( ) or √ for square roots.
Fractions: type 1/2, not “½”.

\( \begin{array}{l}\text{Use exterior angle } = 180^\circ - \text{interior angle.}\\ \text{Then } 360^\circ \div \text{exterior angle.}\end{array} \)

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