Question 63

The area of a rectangle is 42sq.cm and its length is 7cm. Find its perimeter.

Solution

Share

Area of a rectangle=length × breadth.

According to the question,

breadth × 7=42.

or,breadth= 42/7=6.

So, perimeter of the rectangle

$$=2(length+breadth)$$

$$=2(7+6).$$

$$=2×13.$$

$$=26.$$

C is correct choice.

Get AI Help?

Create a FREE account and get:

  • Download RRB Study Material PDF
  • 45+ RRB previous papers with solutions PDF
  • 300+ Online RRB Tests for Free

Join CAT 2026 course by 5-Time CAT 100%iler

Crack CAT 2026 & Other Exams with Cracku!

Enroll Now
Ask AI

Ask our AI anything

AI can make mistakes. Please verify important information.