Maths - equations

Gradient

y2-y1/x2-x1

Distance between 2 points

√(x2-x1)^2+(y2-y1)^2

Mid-point of a line

(x1+x2/2 , y1+y2/2)

Area of Triangle

1/2 of base x perpendicular height

Area of Parallelogram

Base x perpendicular height

area of kite and Rhombus

d1 x d2/2

Volume of pyramid

1/3 area of base x perpendicular height

Curved surface area of cylinder

πdh

Length of an arc

πd x angle/360°

area of a sector

πr^2 x angle/360°

Area of segment

πr^2 x angle/360° - base x height/2