Answer:
18.5
Step-by-step explanation:
28+9 = 37
so 37 divided by 2 = 18.5
28 is 9 less than 18.5 twice (37)
28=2x-9
37=2x
x=18.5
The prism has 9 edges, The bases of the prism are triangles, and the prism has 5 faces.
Would really appreciate a brainliest! Hope this helped! =)
Incomplete question.
266.66
x=
x=13
12*12+5*5=x*x
x*x=169
