what is the surface area of 8 inchs 3 inchs and 4 inchs?

Question

find the surface area of 8 inchs,3 inchs and 4 inchs

Answer 1

Surface area of rectangle = 2ab+2bc+2ca

a = 8in, b = 3in, c = 4in

Surface area of rectangle = 2(8*3)+2(3*4)+2(4*8)

= 2*24+2*12+2*32

= 48+24+64

= 136 squre inches.