Carl had a piece of wire 266 cm long. He used it to form a rectangle with its length and breadth in the ratio 4 : 3.
- What is the length of the rectangle?
- What is the area of the rectangle?
(a)
Length of the rectangle = 4 u
Breadth of the rectangle = 3 u
Perimeter of the rectangle
= 2 x 4 u + 2 x 3 u
= 8 u + 6 u
= 14 u
14 u = 266
1 u = 266 ÷ 14 = 19
Length of the rectangle
= 4 u
= 4 x 19
= 76 cm
(b)
Breadth of the rectangle
= 3 u
= 3 x 19
= 57 cm
Area of the rectangle
= 76 x 57
= 4332 cm
2 Answer(s): (a) 76 cm; (b) 4332 cm
2