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22 May, 13:19

AO ⊥ (BCD)

OB = OC = OD = 12

m∠ACO = 20º

BD = CD = BC

Find: V and Surface Area of a triangular pyramid

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Answers (1)
  1. 22 May, 16:14
    0
    V = 272.3 cube units

    The surface area is 418.34 square units
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