Flower boxes

How many m2 of 10mm thick boards are needed to make 12 flower boxes? The dimensions of the box are 180,150, and 1500 mm.

Correct answer:

x =  11.6592 m2

Step-by-step explanation:

h=10 mm n=12 a=180 mm b=150 mm c=1500 mm  V1=a b c=180 150 1500=40500000 mm3 V2=(a2 h) (b2 h) (c2 h)=(1802 10) (1502 10) (15002 10)=30784000 mm3  V3=V1V2=4050000030784000=9716000 mm3  S1=V3/h=9716000/10=971600 mm2  S2=S1 dm2=S1:10000  dm2=971600:10000  dm2=97.16 dm2 S3=S2 m2=S2:100  m2=97.16:100  m2=0.9716 m2  x=n S3=12 0.9716=11.6592 m2



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you want to convert area units?
Do you know the volume and unit volume, and want to convert volume units?

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Grade of the word problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: