Windows

Calculate the masonry area to build a wall with dimensions of 18 m × 5 m with 3 windows of size 51 cm × 51 cm.

Correct answer:

S =  89.2 m2

Step-by-step explanation:

a=18 m b=5 m n=3 c=51 cm m=51:100  m=0.51 m  S1=a b=18 5=90 m2 S2=c2=0.512=0.2601 m2  S=S1n S2=903 0.2601=89.2 m2



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