Stephen is covering a box with felt. the box is in the shape of a rectangular prism. the height is 12 in. the length and width of the base are 5 in. and 6 in. how much felt does stephen need to completely cover the box?

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

b.-4 units

all you   do is count how many times you move