A rectangular board has a length of 15cm and width x cm. If its sides are doubled, find its new area.
-
60x cm\(^2\)
- 45x cm\(^2\)
- 30x cm\(^2\)
- 15x cm\(^2\)
The correct answer is: A
Explanation
New are = (2 x 15) x (2 x \(x\))
= 60cm\(^2\)