Respuesta :
Surface Area= 2(lw + wh + lh)
= 2 (35 x 20 +20 x 30 + 35 x 30)
= 2 ( 700 + 600 + 1050)
= 2 x 2350
= 4, 700
The surface area of the outside of the fish tank is 4700 sq in.
Step-by-step explanation:
Given,
Length (l) = 35 in
Width (b) = 20 in
Height (h) = 30 in
To find the surface area of the outside of the fish tank.
Formula
The surface area of cuboid (A) = 2(lb+bh+lh)sq in
Now,
A = 2(35×20+20×30+30×35) sq in
= 4700 sq in
Hence,
The surface area of the outside of the fish tank = 4700 sq in.