Breadth = 35 cm
Length = 55 cm
Step-by-step explanation:
Breadth : length = 7 : 11
Breadth = 7x
Length = 11x
Length is 20 cm more than breadth.
Length = breadth + 20
11x = 7x + 20
11x - 7x = 20
4x = 20
x = 20/4
x = 5
Breadth = 7x = 7*5 = 35 cm
Length = 11x = 11 * 5 = 55 cm