Question

I really need help with this.

Answer 1

1/2BA*2+l*w

1/2*12*5*2+10*13+12*10+10*5

=360cm

Answer 2

300 cm cubed or 300 cm^3

Explanation:

(b x h ) / 2 = Area of triangle

5 x 12 = 60

60 / 2 = 30

Because it is a prism, the cross-sectional area is the same throughout the prism. Therefore, you just need to multiply the area by the height/width, which is 10cm.

30 x 10 = 300 cm cubedor 300 cm^3