Question

The perimeter of a rectangle having area equal to 144cm and sides in the ratio 4:9 is.

• A. 52cm
• B. 56cm
• C. 60cm
• D. 64cm

Answer 1

Answer:

A. 52cm

Let 1 = 4x and b = 9x Area of rectangle = 1 x b 144 = 4x * 9x x² = 144/36 = 4 Perimeter of rectangle = 2 (1+b) = 2 (8 + 18) = 2 x 26 = 52cm