All Geometry Formulas Flashcards
From September 2023 - March Mocks 2024
1
Q
Area of a triangle
A
base x perpendicular height / 2
2
Q
Pythagoras’ Theorem
A
a^2 + b^2 = c^2
3
Q
Area of a parallelogram
A
base x perpendicular height
4
Q
Area of a trapezium
A
(a + b) / 2 x height
5
Q
Area of a circle
A
π x r^2
6
Q
Circumeference
A
2 x π x r
7
Q
Area of a sector
A
θ / 360 x π x r^2
8
Q
Arc length of a sector
A
θ / 360 x 2 x π x r
9
Q
Volume of a prism
A
cross section area x length OR height
10
Q
Volume of a sphere (given)
A
4/3 x π x r^3
11
Q
Volume of a cone
A
1/3 x x π x r^3 x height
12
Q
Volume of a pyramid
A
1/3 x area of base x height
13
Q
Frustum volume
A
volume of large cone OR pyramid - volume of small cone OR pyramid
14
Q
Surface Area of CONE
A
(π x r x l) + ( π x r^2)
15
Q
Sum of all interior angles in a polygon
A
(n -2) x 180°
