To find the surface area of a three dimentional figure, we must find the area of each of its faces and all area.
so the answer to the question is True
let me illstrate with a cuboid.
The cuboid usually have diffrent faces, so in other to get its surface area, you fiind the area of each of its faces.
The Formular of the surface area of a cuboid is:
Surafce Area = 2lw + 2lh + 2hw
where l is the length
w is the width
h is the height
let me post the picture of a cuboid for clearer explanation.
This cuboid above is a perfect example of a three dimensional figure
and to get its surface area, you find the area of each of it face and dd them up
so the answer to the question is TRUE
