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Sagot :
Answer:
228.4
Step-by-step explanation:
9.2 + 9.2 + 60 + 75 +75 which is 228.4. Remember to divide the triangles by two after you do base times height.
Answer and Step-by-step explanation:
To find the surface area, we find the area of all the shapes in the prism, then add them together.
Triangles:
(4 × 4.6) ÷ 2 = 18.4 ÷ 2 = 9.2
(4 × 4.6) ÷ 2 = 18.4 ÷ 2 = 9.2
Rectangle 1:
4 × 15 = 60
Rectangle 2 and 3:
5 × 15 = 75
5 × 15 = 75
9.2 + 9.2 + 60 + 75 + 75 = 228.4
228.4 is the total surface area.
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