Jordan purchased a piece of fabric that is 18 cm by 18 cm in order to make a tent for her little sister's dolls. Using the dimensions for the tent shaped as a triangular prism, how much fabric will be left over?

(1 point)
• 324 cm?
• 184 cm?
• 240 cm?
• 84 cm?

To find out how much fabric will be used, we need to calculate the surface area of the triangular prism tent.

The formula for the surface area of a triangular prism is:
Surface Area = 2*(base area of triangle) + (perimeter of base)*(height)

The base of the triangular prism is a triangle with sides of 18 cm, 18 cm, and 18 cm.
First, we need to calculate the area of the triangle:
Area = (base*height)/2 = (18*18)/2 = 162 cm^2

Next, we need to calculate the perimeter of the base:
Perimeter = 18 + 18 + 18 = 54 cm

Now, we can calculate the surface area of the triangular prism:
Surface Area = 2*(162) + (54)*(18) = 324 + 972 = 1296 cm^2

Since the fabric is 18 cm by 18 cm, the total surface area of the fabric is 18 * 18 = 324 cm^2
Therefore, the amount of fabric left over will be:
324 cm^2 (total fabric) - 1296 cm^2 (fabric used for tent) = - 972 cm^2

There is no fabric left over, so the answer is not given in the options provided.