Eric is painting the foyer of his home it measures 6.5 feet by 4.2 feet, with a 9-foot ceiling What is the walu area of the foyer?

This is the concept of surface are of the solid materials;

the dimensions of the foyer are:

height = 9ft

length=6.5 ft

width=4.2 ft

The surface area of Eric's foyer will be given by:

Area=Area of the four walls+area of the ceiling

Area = 2 (length*height) + 2 (width*height) + (length*width)

Area=2 (9*6.5) + 2 (9*4.2) + (6.5*4.2)

Area=2 (58.5) + 2 (37.8) + 27.3

A=117+75.6+27.3

A=219.9 ft^2

The answer of the foyer is 219.9 ft^2