Question

The area of the base of a prism is 55 mm2. The perimeter of the base is 30 mm. The height of the prism is 7 mm.

What is the surface area of the prism?

Answer 1

@VeritasVosLiberabit

Answer 2

I remember this problem from someone else

Answer 3

Is this the prism shape?

Answer 4

It didn't show me any shape

Answer 5

@VeritasVosLiberabit

Answer 6

It should give you an answer bank though

Answer 7

yeah it did



A.
445 mm2

B.
320 mm2

C.
265 mm2

D.
92 mm2

Answer 8

x+y=30:perimeter
xy=55:area

Answer 9

so you already know the area of the base. Now you just need the area of a triangular face and a rectangular face

Answer 10

ok

Answer 11

but to do this you need to first find the small length of the base by equating the area and perimeter equations

Answer 12

I think the answer is 320

Answer 13

\[y=30-x\]
x(30-x)=55

Answer 14

show me your work

Answer 15

give me a sec

Answer 16

i did 55 x 2 and got 110 then i multiplied the 30*7 to get 210 then i just added 110 + 210 getting 320. is that right?

Answer 17

@VeritasVosLiberabit

Answer 18

I'm not following that logic. but I think 320 is the right answer

Answer 19

okay thanks!

Answer 20

can you draw the shape?

Answer 21

or nvm np