GCSE Maths Formulae
Alternate angles (Z angles) - ANS -Are the same
\Angles in a quadrilateral - ANS -Add up to 360
\Angles in a triangle - ANS -Add up to 180
\Angles on a straight line - ANS -Add up to 180
\Angles round a point - ANS -Add up to 360
\Area of circle - ANS -π x r2
\Area of parallelogram - ANS -B x H
\Area of sector - ANS -Angle of sector / 360 x Area of circle
\Area of trapezium - ANS -1/2 x (total of parallel sides) x H
\Area of triangle - ANS -1/2 x B x H
\Circumference of circle - ANS -π x D
\Corresponding angles (F angles) - ANS -Are the same
\Density - ANS -M / V
\Distance - ANS -S x T
\Exterior angle - ANS -360 / number of sides
\Exterior angle of a triangle - ANS -equals sum of opposite interior angles
\Graphs: How would you decide wich place to put the gradient numbers? - ANS -Rise / Run
\In factorising quadratic equations a minus and a minus makes a? - ANS -plus then a minus
\In factorising quadratic equations a minus then a plus makes a? - ANS -minus then a minus
\In factorising quadratic equations a plus then a minus makes a? - ANS -plus then a minus
\In factorising quadratic equations a plus then a plus makes a? - ANS -plus then a plus
\Interior angle - ANS -180 - Exterior angle
\Isosceles triangle - ANS -Two sides are the same. Two angles are the same.
\Length of arc - ANS -Angle of sector / 360 x Circumference of circle
\Mass - ANS -D x V
\Probability-the AND rule - ANS -P of A and B happening is (P of A) times (P of B)
\Probability-the OR rule - ANS -P of A or B happening is (P of A) add (P of B)
\Pythagoras' theorem - ANS -a2 + b2 = h2
\Speed - ANS -D / T
\Sum of exterior angles (irrregular polygons) - ANS -360
\Sum of interior angles (irregular polygons) - ANS -(number of sides - 2) x 180
\Supplementary angles (U angles) - ANS -Add up to 180
\Surface area of cone - ANS -(π x r x l) + (π x r2)
\Surface area of cylinder - ANS -(2 x π x r x h) + (2 x π x r2)
\Surface area of solid - ANS -Area of net
\Surface area of sphere - ANS -4 x π x r2
\The cosine rule - ANS -a2 = b2 + c2 - 2bc COS A or
COS A = b2+c2-abc
\The formula triangle for distance speed and time would be? - ANS -D
SxT
Alternate angles (Z angles) - ANS -Are the same
\Angles in a quadrilateral - ANS -Add up to 360
\Angles in a triangle - ANS -Add up to 180
\Angles on a straight line - ANS -Add up to 180
\Angles round a point - ANS -Add up to 360
\Area of circle - ANS -π x r2
\Area of parallelogram - ANS -B x H
\Area of sector - ANS -Angle of sector / 360 x Area of circle
\Area of trapezium - ANS -1/2 x (total of parallel sides) x H
\Area of triangle - ANS -1/2 x B x H
\Circumference of circle - ANS -π x D
\Corresponding angles (F angles) - ANS -Are the same
\Density - ANS -M / V
\Distance - ANS -S x T
\Exterior angle - ANS -360 / number of sides
\Exterior angle of a triangle - ANS -equals sum of opposite interior angles
\Graphs: How would you decide wich place to put the gradient numbers? - ANS -Rise / Run
\In factorising quadratic equations a minus and a minus makes a? - ANS -plus then a minus
\In factorising quadratic equations a minus then a plus makes a? - ANS -minus then a minus
\In factorising quadratic equations a plus then a minus makes a? - ANS -plus then a minus
\In factorising quadratic equations a plus then a plus makes a? - ANS -plus then a plus
\Interior angle - ANS -180 - Exterior angle
\Isosceles triangle - ANS -Two sides are the same. Two angles are the same.
\Length of arc - ANS -Angle of sector / 360 x Circumference of circle
\Mass - ANS -D x V
\Probability-the AND rule - ANS -P of A and B happening is (P of A) times (P of B)
\Probability-the OR rule - ANS -P of A or B happening is (P of A) add (P of B)
\Pythagoras' theorem - ANS -a2 + b2 = h2
\Speed - ANS -D / T
\Sum of exterior angles (irrregular polygons) - ANS -360
\Sum of interior angles (irregular polygons) - ANS -(number of sides - 2) x 180
\Supplementary angles (U angles) - ANS -Add up to 180
\Surface area of cone - ANS -(π x r x l) + (π x r2)
\Surface area of cylinder - ANS -(2 x π x r x h) + (2 x π x r2)
\Surface area of solid - ANS -Area of net
\Surface area of sphere - ANS -4 x π x r2
\The cosine rule - ANS -a2 = b2 + c2 - 2bc COS A or
COS A = b2+c2-abc
\The formula triangle for distance speed and time would be? - ANS -D
SxT
