What is the surface area of the prism? a. 164 yd2 b. 204 yd2 c. 240 yd2 d. 300 yd2

The correct answer for the question that is being presented above is this one: "D. 300 yd2."

We have to get the areas of 5 polygons and add them together to get the surface area.

Area 1 = l * w = 5*8 = 40
Area 2 = l * w = 12 * 8 = 96
Area 3 = l * w = 13 * 8 = 104
Area 4 = bh/2 = 5*12/2 =30
Area 5 = bh/2 = 5*12/2 = 30

Area = Area 1 + Area 2 + Area 3 + Area 4 + Area 5
Area = 40 + 96 + 104 + 30 + 30
Area = 300 yard^2

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm