A canning company has hired you to design labels for their food cans. You need to know how big the lables are. You know the formula for determining the lateral surface of a cylinder is S= 2pierh.The cans (h) height measures 4" and its (d) diameter is 3". you also know that the (r) radius is half of the diameter. How big will you label be?
plz help
2006-08-02 04:56:01 · 13 answers · asked by joe c 2 in Science & Mathematics ➔ Mathematics
2*3.14*1.5*4 thats the area it will b aprox. 4 by 9.42 in.
2006-08-02 05:01:56 · answer #1 · answered by Earl Morton 2 · 0⤊ 0⤋
SA= 2 x 3.14 x 1.5 x 4
= 37.68 sq. in.
If you want to round to the nearest whole number, it would be 38 sq. in. If you need to round to the nearest hundredth, it would be 37.7 sq. in.
Next time, when you have the formula right in front of you, all you need to do is to plug in the values. You already know that the height is 4" and the diameter is 3", so you should have used those numbers directly in the equation.
2006-08-02 05:17:21 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Hi. This is a simple math problem. Since you have the formula just plug in the values. 2pi x 1.5 x 4. You have to decide if the label should overlap a little bit.
2006-08-02 05:02:31 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋
lateral surface area is 2 * pi * radius * height
==> 2 * 22 / 7 * 1.5 * 4
==> 37.71428 inches squared
2006-08-02 06:49:13 · answer #4 · answered by yrzfuly 3 · 0⤊ 0⤋
Well you just said all there was to know. 1.5'' is half the diameter, which is your r
4'' is your h
1.5 * 4 = 6, times two (from the original equation) is twelve.
Or:
2*pi*r*h = 2*pi*1.5*4 = 12*pi.
2006-08-02 05:01:49 · answer #5 · answered by ymingy@sbcglobal.net 4 · 0⤊ 0⤋
Honestly, how can so many people be wrong??
S=2(pi)rh
S=2(3.14)(1.5)(4)
only use 3.14 if you want an approximation!!
1.5 comes from dividing 3 by 2
S=12pi or about 37.7 square inches (to the nearest hundredth)
2006-08-02 05:08:30 · answer #6 · answered by Matto 1 · 0⤊ 0⤋
cylinder area = 2*(3"/2)*pi*4" = 37.7 in.^2
so my label will allow for a 0.25" overlap (to allow glue to be applied) and the label area will be:
37.7 in^2 + (0.25")(4") = 38.7 in^2
2006-08-02 05:00:11 · answer #7 · answered by jimvalentinojr 6 · 0⤊ 0⤋
S = 2 pi r h where h=4 and d=3 (therefore r=1.5)
S= 2 (3.14)(1.5)(4)
S = 9.42
2006-08-02 05:00:16 · answer #8 · answered by p_rutherford2003 5 · 0⤊ 0⤋
What? Is this your homework?
Easy:
S = 2 (pi) r h
... r = 3/2 = 1.5; h=4
so
S = 2 (3.1416) * 1.5 * 4 = (6.2832)*(6) = 37.6991"
2006-08-02 05:08:49 · answer #9 · answered by Ricarri 7 · 0⤊ 0⤋
just plug into the formula you have:
S = 2*pi*(3/2)*4
S = 12pi = approximately 37.68
2006-08-02 05:01:14 · answer #10 · answered by bpc299 2 · 0⤊ 0⤋