Question

Help me please ? !! What is the surface area of the box?

Answer 1

a=b*l

Answer 2

I got this

Area= w.h
A=10.5=100 Two sides to I multiplied by 2 = 100

A= 10.5=100 Two sides so I multiplied by 2 = 100

A=10*10 = 100 two sides so I multiplied by 2 = 200

Total = 400in

Answer 3

surface area=2(l*b+b*h+l*h)
=2(10*10+10*5+10*5)
=2(100+50+50)=2*200=400 sq.in.