How can we help?

You can also find more resources in our Help Center.

16 terms

various formulas for math. based on the Mensuration chapter of the Extended Mathematics for IGCSE by David Rayner textbook.

area of a trapezoid

½(a+b)h

area of a kite

½(product of diagonals)

area of a parallelogram

bh OR basin∅

area of a circle

πr²

circumference

πd

area of a prism

(area of base)(h)

sector area

(∅ ÷ 360)(πr²)

arc length

(∅ ÷ 360)(πd)

volume of a cylinder

πr²h

volume of a pyramid

1/3(base area)(h)

volume of a cone

1/3πr²

volume of a sphere

4/3πr³

surface area of a cylinder

2πr²

surface area of a sphere

4πr²

surface area of a cone

πrl

cosine rule for a side

a² = b² + c² - (2bccosA)