Area of 2D shapes (Mensuration) Flashcards
(10 cards)
1
Q
Area for a square?
A
L x L = L2
2
Q
Area for a rectangle?
A
L x W
3
Q
Area for a triangle?
A
1/2 x b x h
4
Q
Area for a Rhombus and a Parallelogram?
A
B x H
5
Q
Area for a Trapezium?
A
1/2 x h x (sum of parallel sides) –> 1/2 x h x (a + b)
6
Q
Area of a Circle?
A
πr2
7
Q
Arc length of sectors of a Circle - Pizza slice and Pacman
A
Arc length = angle/360 x 2πr
8
Q
Area of sectors of a Circle - Pizza slice and Pacman
A
angle/360 x πr2
9
Q
Area of Major segment?
A
Major segment = Pacman + Triangle
Major Segment = [angle/360 x πr2] + [1/2ab sin c]
10
Q
Area of Minor Segment
A
Minor Segment = Pizza slice - Triangle
Minor = [angle/360 x πr2] - [1/2ab sin c]
