a swimming pool is 30 m long,10m wide and 2.5m deep. its walls have been covered with tiles of size 20cm *10 cm. Find the number of tiles to be used on its floor and four walls
Answers
Answered by
109
Given ;
l = 30 m
b = 10 m
h = 2.5 m
Area of 4 walls and floor
= 2(l+b)h + lb
= 2(30+10)2.5 + (30×10)
= 200+300
= 500 m sq.
Area of 1 tile
= 20cm × 10cm
= 0.2 m × 0.1 m
= 0.02 m sq.
Number of tiles required
= Total Area/area of one tile
= 500/0.02
= 25000 Tiles
___________________
l = 30 m
b = 10 m
h = 2.5 m
Area of 4 walls and floor
= 2(l+b)h + lb
= 2(30+10)2.5 + (30×10)
= 200+300
= 500 m sq.
Area of 1 tile
= 20cm × 10cm
= 0.2 m × 0.1 m
= 0.02 m sq.
Number of tiles required
= Total Area/area of one tile
= 500/0.02
= 25000 Tiles
___________________
Answered by
11
Step-by-step explanation:
Given
l=30m , b=10m, h=2.5m
area of 4walls and floor
2(l+b)h+lb
2(30+10) 2.5 +(30x10)
200+300
500msq
area of 1tiles
20cmx10cm
0.2mx0.1m
0.02msq
number of tiles required
total areas/ area of one litre
500/0.02
2500 tiles
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