SOLUTION: If the distance between consecutive fence posts is 5 meters, what is the number of posts needed to build a fence around a triangular region with sides 20 m, 20 m, 30 m?
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Question 1173729: If the distance between consecutive fence posts is 5 meters, what is the number of posts needed to build a fence around a triangular region with sides 20 m, 20 m, 30 m? Answer by ikleyn(52810) (Show Source):
The perimeter is 20 + 20 + 30 = 70 meters.
The number of intervals between the posts is 70/5 = 14.
Since the contour is the closed line, the number of posts is equal to the number of the intervals between the posts.
ANSWER. 14 posts.
