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Nady [450]
4 years ago
11

A 2-inch-wide frame is to be built around the regular decagonal window. At what angles a and b should the corners of each piece

be cut?
Mathematics
1 answer:
Lady bird [3.3K]4 years ago
4 0
External angles add up to 360
so each external angle = 360/10 = 36 degrees
internal angle = 180 - 36  = 144 degrees

answer is 144 degrees
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