Question

2."A square sheet has its total area 5 times the total area of the rectangle. The length and breadth of
the rectangle are 125 cm and 64 cm respectively.
What is 4 times the sides of the square?"
a. 300 cm
b. 400 cm
C. 500 cm
d. 800 cm​

Answer 1

Answer:

b. 400 cm

Step-by-step explanation:

• Area of rectangle = 125 × 64 = 8000
• Area of square = 8000 ÷ 5 = 1600
• Side of square = 1600 ÷ 4 = 400

Answer 2

The four times of the side length of the square sheet is equal to 800 cm.

• The area of a rectangle is given by the product of its length and breadth.Since length = 125 cm and breadth = 64 cm , the area of the rectangle is equal to 8000 cm².
• The area of the square is given by the square of its side length and is equal to five times of the area of the rectangle. So, for a square with side s , we have s² = 40000 cm² ⇒ s = 200 cm.
• Hence, four times the side length equals 4×200 = 800 cm.