SL 
Name of the figure 
Perimeter, area and volume 
Nomenclature 
1 
Triangle 
Perimeter = a+b+c, Area = ½ b×h 
B is the base and
H is heights
a, b and c are the sides of the triangle

2 
Right angled triangle 
Perimeter = b+h+d Area = ½ b×h 

3 
Equilateral triangle 
Perimeter = 3a
Area = (i) ½ a×h
= (ii) √3/4 a²

a = side h = altitude 
4 
Rectangle 
Perimeter = 2(a+b)
Area = ab

a = length b = breadth 
5 
Square 
Perimeter = 2a
Area = a² sq. units

a = side 
6 
Parallelogram 
Perimeter = 2(a+b)
Area = ah

a = side
b = side adjacent to a
h = distance between parallel sides

7 
Rhombus 
Perimeter = 4a
Area = ½d_{1}d_{2}

A=side=½√(d_{1}^{2}+d_{2}^{2})
d_{1}, d_{2} = diagonals

8 
Trapezium 
Perimeter = Sum of 4 sides
Area = ½h(a+b)

a, b = parallel sides
h = distance between parallel sides

9 
Quadrilateral 
Perimeter = Sum of 4 sides
Area = ½(AC)(h_{1}+h_{2})

AC = diagonal
h_{1},h_{2} = altitudes on AC

10 
Circle 
Circumference = 2πr
Area = πr²

r =radius 
11 
Cuboid 
Total Surface = 2(lb+bh+hl)
Volume = lbh

l = length
b = breadth
h = height

12 
Cube 
Total Surface = 6a²
Volume =A^{3}

a = edge 
13 
Right circular cylinder 
Total Surface = 2πr(h+r)
Volume =π r²h

r = radius of the base
h = height of the cylinder

14 
Right circular cone 
Total Surface = πr(l+r)
Volume =1/3 π r²h

r =radius
L = slant height
h = height

15 
Sphere 
Total Surface = 4πr²
Volume =4/3π r^{3}

r =radius 
16 
Hemisphere 
Total Surface = 3πr²
Volume =2/3π r^{3}

r =radius 



