P = a+b+c+d
A = ((a+c)*v)/2
A = area
P = perimeter
a =side "a"
b = side "b"
h = height
The sides of the trapezium are, for example, a is 8 cm, b is 3 cm, c is 6 cm, d is 2 cm, height v is 4 cm.
Thus
a = 8, b = 3, c = 6, d = 2, v = 4
perimeter of the trapezium:
We use the formula
C = a + b + c + d
thus
C = 8 + 3 + 6 + 2
C = 19 cm
area of the trapezium:
We use the formula
A = ((a + c) * v) / 2
thus
A = ((8 + 6) * 4) / 2
A = 28 cm²