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Find the lateral and surface area of the figure.

Find the lateral and surface area of the figure.-example-1
User E Player
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Answer:

A.

Lateral area (LA) = 324 cm²

Surface area = 432 cm²

Explanation:

✔️Lateral area of the triangular prism = perimeter of the base (P) × height of prism (L)

Perimeter (P) = 9 + 12 + 15

Perimeter (P) = 36 cm

height of prism (L) = 9 cm

Lateral area (LA) = 36 × 9 = 324 cm²

✔️Surface area = bh + LA

b = 9 cm

h = 12 cm

LA = 324 cm²

Surface area = 9*12 + 324

= 108 + 324

Surface area = 432 cm²

User Atafar
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