becca6673913 becca6673913

05-01-2022
Mathematics

contestada

Find the surface area of the prism

A. 90 cm^2
B. 96 cm^2
C. 150 cm^2
D. 156 cm^2

Find the surface area of the prism A 90 cm2 B 96 cm2 C 150 cm2 D 156 cm2 class=

Respuesta :

mhanifa mhanifa

05-01-2022

Answer:

D. 156 cm²

Step-by-step explanation:

The full surface area is:

S = Ph + 2B = (3 + 4 + 5)*12 + 2(1/2*3*4) = 144 + 12 = 156 cm²

Correct choice is D

Answer Link

Аноним Аноним

06-01-2022

Step-by-step explanation:

SA = 12(3 + 4 + 5) + 2(½ × 3 × 4)

SA = 12(12) + 2(2 × 3)

SA = 144 + 2(6)

SA = 144 + 12

SA = 156 cm²

Therefore

Surface area of prism is 156 cm². Option D

Answer Link

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