GCSE Maths | Angles in Parallel Lines

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Angles on a straight line add up to 180o

Angles around a point add up to 360o

Angles in a triangle add up to 180o

Alternate angles (Z) are equal

Corresponding angles (F) are equal

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GCSE Maths | Frustrums

* volume of cone = 1/3 x π x r2 x h * volume of frustrum = volume of big cone - volume of small cone * the small cone and big cone are similar shapes * the
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GCSE Maths | Sectors

* Area of a sector = πr2 x (x/360o) * Arc length = 2πr x (x/360o) Question 1 Find the area of the sector Question 2 Find the radius of the sector Question 3 Find