Question

4. The area of a rectangle is 30 cm? What is the total area of 4 such rectangles?
5. The perimeter of a square cardboard is 24 cm. What is its area?​

Answer 1

Answer:

rectangle =120

square =24

Answer 2

Ans. area of one rectangle = 30cm sq

now ,area of 4 such rectangles = 4*30

= 120cm sq

Ans. perimeter of square =4a

24= 2a

solving, we get a=12

now, area of square = a^2

= (12)*(12)

= 144 cm sq