Seudónimo Seudónimo

13-01-2021
Mathematics

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ricchad ricchad

13-01-2021

Answer:

360 m²

Step-by-step explanation:

surface area of a square base pyramid = base area + 4 ( triangular sides area)

where:

base = 12 m

side height length = 9 m

Surface area = 12² + 2(12)9

= 144 + 216

= 360 m²

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