Find the number of square tiles of sides 100 cm needed to fit in a rectangular region whose length and breadth are 12 m and 9 m.
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Find the number of square tiles of sides 100 cm needed to fit in a rectangular region whose length and breadth are 12 m and 9 m.
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(a) Area of region = 100 cm x 144 cm = 14400 cm.sq
Area of one tile = 5 cm x 12 cm = 60 cm.sq
Number of tiles = \frac{Area\ of\ region}{Area\ of\ one\ tile}
Area of one tile
Area of region
= 240
Thus, 240 tiles are required.
(b) Area of region = 70 cm x 36 cm = 2520 cm.sq
Area of one tile = 5 cm x 12 cm = 60 cm.sq
Number of tiles = \frac{Area\ of\ region}{Area\ of\ one\ tile}
Area of one tile
Area of region
= 42
Thus, 42 tiles are required
Answer:
so first area of rectangular region- 12 * 9 = 108 m or 10800 cm
now find area of 1 tile - 100*100 = 1000 cm
and now 108000 / 1000 = 108 tiles
Step-by-step explanation: