Answer:
Explanation:
Volume formula for prism:
- V = Ah, where A- area of bas, h- height of base
Area of base:
- A = 1/2(b1 + b2)h = 1/2(x + 2 + x + 4)x = 1/2(2x + 6)x = x(x+3)
Volume of prism is:
- V = 2x*x(x + 3) = 2x³ + 6x²
If x = 12, then the value of V is:
- V = 2*12³ + 6*12² = 4320 cm³