Question

Volume of the prism ???

Answer 1

First find the area of the facing side

Area = area of bottom rectangle + area of the trapezium at the top

= 5 * 12 + 1/2 *(7+12)*(15-5)

= 60 + 1/2 * 19 * 10

= 60 + 95 = 155

Now multiply by the length

Volume = 155 * 8 = 1240 cm^3 (answer).