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An umbrella you bought is shaped like a regular octagonal pyramid with a side length of four feet and a slant height of five feet. Estimate the amount of fabric that the umbrella has.
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An umbrella you bought is shaped like a regular octagonal pyramid with a side length of four feet and a slant height of five feet. Estimate the amount of fabric that the umbrella has.

User Asoub
by
7.2k points

2 Answers

1 vote
1/2 the 5 times 4= 110.0 which should be answer:)

User AlekseyS
by
9.0k points
1 vote
we know that
[amount of fabric]=8*[area of lateral triangle side]
area of lateral triangle side=(1/2)*4*5----> 10 ft²
so
[amount of fabric]=8*[10]----> 80 ft²

the answer is
80 ft²
User Liridon
by
8.3k points
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