how many tiles whose length and breadth are 12cm and 5cm respectively will be needed to fit in a rectangular region powhosr length and breadth are respectively (1) 100cm and 144cm (2) 70cm and 36
Answers
Answer:
(a) Area of region = 100 cm x 144 cm = 14400 sq.cm
Area of one tile = 5 cm x 12 cm = 60 sq.cm
Number of tiles =
Area of region
Area of one tile
=14400/60
= 240
Thus, 240 tiles are required.
(b) Area of region = 70 cm x 36 cm = 2520 sq.cm
Area of one tile = 5 cm x 12 cm = 60 sq.cm
Number of tiles =
Area of region
Area of one tile
=2520/60
= 42
Thus, 42 tiles are required.
Step-by-step explanation:
Answer:
firstly,
the area of tiles = l×b
=12×5 =60cm²
- the rectangular region = l×b
=100×144= 14400cm²
14400/60 = 240
So, 240 tiles required for first rectangular region .
2. the rectangular region =l×b
= 70×36= 2520cm²
2520/60= 42
So, 42 tiles required for rectangular region.