Question

I need help with 10 please

Answer 1

254
`cm^(2)`

Explanation:

Surface Area = 2Lh+2Lw+2wh

L=4 cm

h=9 cm

w=7 cm

Surface Area = 2(4)(9)+2(4)(7)+2(7)(9)

Surface Area = (72+ 56 +126)
`cm^(2)`

Surface Area = (72+ 56 +126)
`cm^(2)`

Surface Area =254
`cm^(2)`