What's the total surface area of a covered box with a length of 4 ft, a width of 3 ft, and a height of 6 ft? Question 17 options : A) 108 sq ft B) 38 sq ft C) 84 sq ft D) 96 sq ft
2 answers:
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Answer:
A. 108 ft².
Step-by-step explanation:
Find the area of each face using the dimensions 4, 3 and 6. Remember, there are 6 total faces with 3 sets of congruent faces. The faces are rectangular, so the formula A = l × w will be used to solve for the area of each:
2(4 ·3) = 2(12) = 24 ft²
2(4· 6) = 2(24) = 48 ft²
2(3 · 6) = 2(18) = 36ft².
Add up the areas of the faces:
24 + 48 + 36 = 108 ft².
Answer:
A) 108 sq ft
Step-by-step explanation:
SA = PH + 2LW
P = 2(L + W)
SA = 2(L + W)H + 2LW
SA = 2(4 ft + 3 ft)(6 ft) + 2(4 ft)(3 ft)
SA = 108 sq ft
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