Answer:
The answer is 96 yd 2
Step-by-step explanation:
First for the triangle bases, you multiply the 3 by 4 and divide by 2 to get one base which is 6, then double it to get the other base on the top to get a total of 12. Then you just find the area of the other sides of the prism by multiplying the lengths and widths.
5x7=35
4x7=28
3x7=21
then you add all of the total values together:
35+28+21+12=96
