Question

(PLEASE HELP, ONLY ANSWER IF YOU KNOW) what is the surface area of this design 10in 10in 5 in 5in 8in 2in

Answer 1

• C. 440 in²

Explanation:

Area of top and bottom faces:

• 2(10*10) = 200 in²

Area of front and back faces:

• 2(10*10 - 8*5) = 2(100 - 40) = 2(60) = 120 in²

Area of left and right faces:

• 2(10*10 - 8*5) = 2(100 - 40) = 2(60) = 120 in²

Total surface area:

• S = 200 + 120*2 = 440 in²

Correct choice is C