Bathroom 81542

The bathroom wall is 4m long. Her height is half. How many square meters of 10cm x 10cm square tiles will be needed to cover it?

Correct answer:

A =  8 m2
n =  800

Step-by-step explanation:

a=4 m b=a/2=4/2=2 m  A=a b=4 2=8 m2
A2=A cm2=A 10000  cm2=8 10000  cm2=80000 cm2 x=10 cm S2=x x=10 10=100 cm2  n=A2/S2=80000/100=800



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