Area of trapezium and Polygon Flashcards
1
Q
Triangle perimeter
A
a+b+c
2
Q
Triangle Area
A
√s(s-a)(s-b)(s-c)
and
1/2 * Base * Height
3
Q
Rectangle perimeter
A
2(l+b)
4
Q
Rectangle Area
A
l*b
5
Q
Rectangle diagonal
A
d^2 = l^2 + b^2
d = √l^2+b^2
6
Q
Square Perimeter
A
4a
7
Q
Square Area
A
Side^2
8
Q
Square Diagonal
A
side√2
9
Q
Trapezium area
A
1/2 * (sum of parallel sides)* h
10
Q
Parallelogram area
A
baseheight
or
2Area of triangles
11
Q
Rhombus perimeter
A
4a
12
Q
Rhombus area
A
1/2*product of diagonals
13
Q
Circle diameter
A
2r
14
Q
Circle Area
A
πr^2
15
Q
Circle Circumference
A
2πr or πD
