the lengi breadth and thickness of a brick are 14cm 9 cm and 6 cm respectively find its volume.
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How many bricks of length 25cm, breadth 15cm and height 10cm are required to build a wall of length 6m, height 2.5m and breadth 0.5m?
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Length of brick=25cm
breadth of brick =15cm
height of brick=10cm
volume of brick =length×breadth×height
=25cm×15cm×10cm
=3750cm3
length of wall=6m=600cm
breadth of wall=0.5m=50cm
height of wall =2.5m=250cm
volume of wall=length×breadth×height
=600×250×50=7500000cm3
the number of bricks required=37507500000
=375750000
=2000
hence, number of bricks =2000
Answer :
Volume is Length x Breadth x Height.
Length is 30cm, breadth measurement has been left out and volume is 9,000 cu.cm.
9,000cm. / 30cm = 900 / 3 = 300cm.
sqrt. 300cm = 17.321cm = breadth x height.
Let Breadth = 15cm. 300cm. / 15 = 20cm = Height.
Check: L. 30cm x B. 15cm = 450 sq.cm. x H. 20cm. = 9,000 cu.cm.
Answer. Breadth is 15cm and Height is 20cm.
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