To find the surface area of a three dimensional figure, you must find the area of each of its faces and then multiply the areas. true or false

False

Step-by-step explanation:

we know that

To find the surface area of a three dimensional figure, you must find the area of each of its faces and then sum the areas

The surface area of a three dimensional figure is equal to the area of its bases plus the area of its lateral faces

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

the answer is 150.6

step-by-step explanation:

you multiply .02 by 30 and get .6.

and then you multiply 5.00 by 30 and get 150.

hope this !