Question

Need help with 16 ,17 and 18 easy 6th grade math

Answer 1

These are your following answers.
16.6
17.B
18.A

Answer 2

Hello there, and thank you for posting your question here on brainly.

16) A rectangular prism has 6 sides.

17) Perpendicular lines form a 90° line.

18) It would have 12 1/2 in.

Hope this helped!! ☺♥