The length and breadth of a rectangle are 12 cm and 9 cm, respectively. Its perimeter will beA6 cmB21 cmC42 cmD10.5 cmAnswer: C. 42 cm Read Explanation: Perimeter of rectangle = 2(L + B) = 2 ( 12 + 9) = 2 x 21 = 42 cm = 108Read more in App
