Question

Find the perimeter of a rectangle of length 'a' and breadth 'b'.

• A. a + b
• B. ab
• C. 2ab
• D. 2(a + b)

Answer 1

The correct option is D 2(a + b)

Perimeter of a closed figure is the length of its boundary.
For a rectangle of length 'a' and breadth 'b', its perimeter (P) is given by,
P = a + b + a + b
= 2a + 2b
= 2(a + b)

So, perimeter of a rectangle of length 'a' and breadth 'b' is given by 2(a + b).