17) It may help to graph it if you can, it's hard to do online on here
18) The formula for the surface area of a prism is (2 × Base Area) + (Base perimeter × height) so
(2 x 5 cm) + (12 x 2)
(10 cm) + (24 cm)
34 cm
B
19) D 1 rectangle and 2 circles, a "net" is what it looks like 2D
20) Unsure, sorry!
I did as much as I could haha, have a good day and good luck!
