The perimeter and the breadth of a rectangle are 52 cm and 12 cm respectively. Find its area (in cm2).
1). 84
2). 336
3). 168
4). 252
We know, perimeter of the rectangle = 2 × (Length + Breadth)
Area of the rectangle = Length × Breadth
Given, perimeter of the rectangle = 52 & Breadth = 12
⇒ 2 × (Length + Breadth) = 52
⇒ Length + 12 = 26
⇒ Length = 14
∴ Area of the rectangle = 12 × 14 = 168 cm22. The surface area of a sphere is $64\pi$ sq.cm.. Its diameter is equal to