Formulas to learn

Question 1

Area of a Rectangle

Answer 1

length x width

Question 2

Area of a Parallogram

Answer 2

base x height

Question 3

Area of Triangle

Answer 3

base x height

____2______

Question 4

Area of a Trapezium

Answer 4

(base+base) x height

_______2________

Question 5

Volume of a Cuboid

Answer 5

(length x width) x height

Question 6

Volume of a Prism

Answer 6

area of cross section x length

Question 7

Volume of a Cylinder

Answer 7

(Pi x radius^2) x height

Question 8

Volume of a Pyramid

Answer 8

base length x width x height

___________2__________

Question 9

Area of a triangle using Trig formula

Answer 9

1/2 x a x b x Sin(c)

Question 10

Sin Rule (and when do you use it)

Answer 10

a = b = c
sinA sinB sinC
-this one is for sides flip for angle
use when have at least 1 angle + 1 side

Question 11

Cosine Rule (and when do you use it)

Answer 11

to find side:
a^2 = b^2 + c^2 - 2bc cosA

or/ ____use when cant do sin rule
to find angle:
cosA = b^2 + c^2 - a^2
________2bc______

Question 12

Circumference of a circle

Answer 12

Pi x D

Question 13

Area of a circle

Answer 13

Pi x r^2

Question 14

Density

Answer 14

mass/volume

Question 15

Pressure

Answer 15

Force/area

Question 16

Quadratic Formula

Answer 16

_______
-b +/- / b^2 - 4(ac)
_____ 2a______

Question 17

Trig Ratios

Answer 17

O A O

S H _ C H _ T A

Question 18

Pythagorus’ Theorem

Answer 18

a^2 + b^2 = c^2

Question 19

area of kite

Answer 19

diagonal x diagonal (both cross down middle not sides

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