Pillar 4

A square prism pillar is 10 metres high with a base edge of 90 cm. How many bricks are needed to build it if 1 brick has a volume of 1.2 dm³?

Final Answer:

n =  6750

Step-by-step explanation:

h=10 m dm=10 10  dm=100 dm a=90 cm dm=90:10  dm=9 dm  V=a a h=9 9 100=8100 dm3 V1=1.2 dm3  n=V/V1=8100/1.2=6750



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