Question 43
Mensuration of Plane ShapesA square tile has side 30cm. How many of these tiles will cover a rectangular floor of length 7.2m and width 4.2m?
- A.336
- B.420
- C.576
- D.720
Show the answer and explanation
Answer: A (336)
Explanation
The floor is 720cm by 420cm. That is 24 tiles along and 14 tiles across, so 24 × 14 = 336 tiles.