The area of a square is three-fifths the area of a rectangle. The length of the rectangle is 25 cm and its breadth is 10 cm less than its length. What is the perimeter of the square?
- A.60cm
- B.44cm
- C.80cm
- D.cannot be determined
Show answer
Answer: A. 60cm
Breadth = 15 cm. Area of rectangle = 375 cm². Square area = (3/5)*375 = 225 cm², so side = 15 cm. Perimeter = 4*15 = 60 cm.