Paneling is sold in sheets that are 150 cm by 250 cm. How many panels are needed to cover a wall area that is 12 feet by 15 feet? Sheets may be cut down to size.
2006-09-09 12:02:26 · 5 answers · asked by maconheira 4 in Science & Mathematics ➔ Mathematics
also, we need to use significant figures
2006-09-11 04:22:41 · update #1
The total area of each panel would be 150x250=37500 sq.cms.
The total area to be pannelled is 12 ft b 15 fti.
This area in terms of centimeters=30x450=162000 sq cnms
This divided by the sheet area =162000/37500
= 1620/375
= 4 sheets plus a piece of 12z10
I thank the child who gave me an opportunity to brush up my maths in school. I was never very bright in it then.(May be not even now)
That is the answer.
2006-09-09 12:27:52 · answer #1 · answered by Prabhakar G 6 · 0⤊ 0⤋
1 foot = 30 cm
the total area = (12*30)*(15*30) square cm
the sheet area = 250* 150 square cm
No. of sheets = [(12*30)*(15*30)]/(250*150)=
108/25=4.32 sheets
you have to buy 5 sheets and keep the chnage of the fifth sheet you may need it in something else.
2006-09-09 19:24:02 · answer #2 · answered by phantom_man17 4 · 0⤊ 0⤋
there are 12x15=180 square feet of wall
there are 929.0304 square cm. in a square foot
each sheet is 150x250=37500 square cm.
180x929.0304=167225.472 the total number of square centimeters needed. so,
167225.472 divided by 37500 = 4.46 sheets. since you cannot buy a partial sheet , you wiil need to buy 5 sheets.
2006-09-09 19:25:41 · answer #3 · answered by kjfabre 2 · 0⤊ 0⤋
4.457 panels
2006-09-09 19:15:51 · answer #4 · answered by joel m 2 · 0⤊ 0⤋
huh?
2006-09-09 19:07:34 · answer #5 · answered by why hello there 2 · 0⤊ 0⤋