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Earn +20 ptsQ: How many triangles can you get in 7 straight lines?
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How many triangles does a hepagon have?
The word is heptagon. A heptagon has 7 sides and 7 corners. If you join corners by straight lines from one corner to another corner you will find 5 triangles, but if you join all corners to a point in the centre you will find 7 triangles. The Heptathlon in athletics is a contest in which the participants must compete in 7 different athletic forms of athletics.
How many triangles does a nonagon have?
A nine sided shape has 7 triangles
How many number in triangles in a nonagon have?
9-2 = 7 triangles
How many triangles are there in an nonagon?
7
How many straight lines can be formed out of 10 points of which 7 are collinear?
If only 7 are colinear, then the question implies the lines need not go through every point. In that case there is an infinity of lines for each point.
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