Question

http://prntscr.com/6n5af7

Answer 1

use the formula

SA = 2*(LW + LH + WH)

where in this case,

L = 6
W = 11
H = 9

Answer 2

i add it all next

Answer 3

what do you mean?

Answer 4

im trying to get the answer

Answer 5

what is L*W when L = 6, W = 11

Answer 6

66

Answer 7

yep, how about L*H for L = 6, H = 9

Answer 8

54

Answer 9

and finally, how about W*H ?

Answer 10

99

Answer 11

So,

SA = 2*(LW + LH + WH)
SA = 2*(6*11 + 6*9 + 11*9)
SA = 2*(66+54+99)
SA = ???

Answer 12

???

Answer 13

add it all

Answer 14

that's where you fill in the blank

Answer 15

66+54+99 adds to what?

Answer 16

219

Answer 17

now you finally double that result

Answer 18

add it twice

Answer 19

SA = 2*(LW + LH + WH)
SA = 2*(6*11 + 6*9 + 11*9)
SA = 2*(66+54+99)
SA = 2*(219)
SA = 438

Answer 20

yes or add it twice

Answer 21

oh thats the answer thanks