Answer:
Surface area = 126 square ft .
Step-by-step explanation:
Given : Rectangular cuboid .
To find : Find the total area of the solid figure.
Solution : We have given Rectangular cuboid .
Length = 3 ft .
Width = 5 ft .
Height = 6 ft .
Surface area = 2 ( l*w + w*h + l *h).
Plug the values
Surface area = 2 ( 3*5 + 5*6 + 3 *6).
Surface area = 2 (15 + 30 + 18).
Surface area = 2 ( 63).
Surface area = 126 square ft .
Therefore, Surface area = 126 square ft .
