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Which is the BEST estimate for the surface area of the prism?
A) 34 ft2
B) 48 ft2
C) 72 ft2
D) 96 ft2

Which is the BEST estimate for the surface area of the prism A 34 ft2 B 48 ft2 C 72 ft2 D 96 ft2 class=

Respuesta :

MsRay

Answer:

C) 72 ft²

Step-by-step explanation:

Surface area of a prism can be found using the general formula:

SA = 2ab + 2ac + 2bc, where 'a', 'b' and 'c' are the measurements of the prism

a = 1.8 ≈ 2ft

b = 2.9 ≈ 3ft

c = 5.7 ≈ 6ft

SA = 2(2*3) + 2(2*6) + 2(3*6)

SA = 12 + 24 + 36

SA ≈ 72 ft²

Answer: The answer is C) 72!

Step-by-step explanation:

SA = 2ab + 2ac + 2bc, where 'a', 'b' and 'c' are the measurements of the prism

a = 1.8 ≈ 2ft

b = 2.9 ≈ 3ft

c = 5.7 ≈ 6ft

SA = 2(2*3) + 2(2*6) + 2(3*6)

SA = 12 + 24 + 36

SA ≈ 72 ft

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