Multiple choice

The length of the rectangle is 200% more than the width of the rectangle. If the its perimeter is 1440 mm Then find the area of the Rectangle ?

  1. $98900 mm2$
  2. $78200 mm2$
  3. $9720 cm2$
  4. $97200 mm2$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Length is 200% more than width, so L = w + 2w = 3w. Perimeter P = 2(L+w) = 2(3w+w) = 8w = 1440, so w = 180 mm. Length L = 540 mm. Area = L × w = 540 × 180 = 97200 mm². Option C is wrong because it uses cm² not mm².