The art class is making wind chimes out of tin cans. each can is 5 inches tall with a radius of 2 inches. the students have to paint the outside portions of the cans they want to use in their windchimes.

what is the lateral area for one of the tin cans? use 3.14 for pie

a) 62.8
b)125.6
c)31.4
d)87.92

A) 62.8

Step-by-step explanation:

Since, the shape of the can is cylindrical,

And, the lateral area of the cylinder is,

Where r = radius of the cylinder

h = height of the cylinder

Here, r = 2 inches, h = 5 inches

Hence, the the lateral area for one of the tin cans,

⇒ Option A is correct.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3