Question

For his band fundraiser Cameron is selling chocolate bars in the shape of a triangular prism what is the surface area of the foil Covering the chocolate?

Answer 1

You can use one formula to calculate the surface area of a triangular prism, this given by:

`SA=bh+(s1+s2+s3)H`

Where:

b = base

h = height of the triangle

s1, s2 and s3 = the length of each side of the triangle base

H = the height of the prism (which is the length of the rectangles)

So, substitute the given values into the formula:

b = 1, h = 1.5, s1 = 1, s2 = s3 = 1.6 and H = 6

`SA=1(1.5)+(1+1.6+1.6)(6)`

And solve:

`SA=1.5+(4.2)(6)=1.5+25.2=26.7`

Answer: 26.7 in^2