To find surface area, we can use the equation:
SA=2lw+2wh+2lh, where:
l=10 in
w=3 in
h=7 in
SA=(2)(10)(3)+(2)(3)(7)+(2)(10)(7)
SA=60+42+140
SA=242 in²
Answer:
Step-by-step explanation:
Answer:
46.2
Step-by-step explanation:
I'm assuming it is a rectangle, and so..... perimeter is s+s+s+s and this will be
9+9+14.1+14.1 = 46.2
:)
Also like the other question I helped you: work backward. 390*2 = 780.
15*6.5 = 97.5/2 = 48.75. 780 divided by 48.75 = 16.
Hope this helped,
Loafly
:)