Answer:
Explanation:
Volume of a pentagonal prism = 1/4√(5(5 + 2√5))·a²h
a = length of a base edge
h = height
Realistic dimensions would be 8" base edge and 11" height for a decent size birdhouse.
V = 1/4√((5(5+2√5))·(8)²(11) = 1211.22 in³
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