Question

what is the total surface area in square millimeters, of the rectangle solid shown below? HELP PLEASE!

Answer 1

D) 290

Explanation:

w = 5

l = 12

h = 5

Formula:

SA = 2(wl + hl + hw)

SA = 2(5*12 + 12*5 + 5*5)

SA = 2(60 + 60 + 25)

SA = 2(145)

SA = 290