Flashcards in Maths Equations Deck (16):

1

## Area of a parallelogram

### Base x vertical height

2

## Area of a trapezium

### 1/2(a+b)h

3

## Exterior angle of a regular polygon

### 360 degrees/n

4

## Sum of interior angles of any polygon

###
(N-2)x180 degrees

Where n is the number of sides

5

## For a circle with radius

###
Circumference=2 pie

Area=pie r 2

6

## Volume of a prism

### Cross-sectional area x length

7

## Volume of a cylinder

### Area of circlexheight=pie r 2 h

8

## Surface area of cylinder

### 2 pie r h + 2 pie 2

9

## Compound growth and decay

###
N=N o (multiplier)n

10

## Area of a sector

### X degrees /360 degrees x area of a full circle

11

## Length of an arc

### X degrees / 360 degrees x circumference of full circle

12

## Pythagoras theorem

### A2 + b2 = c2

13

## Trigonometry ratios :

###
Sin x : opposite/hypotenuse

Cos x : adjacent/hypotenuse

Tan x : opposite/adjacent

14

## Compound measure for speed

### Speed=distance/time

15

## Compound measure for density

### Density=mass/volume

16