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21 votes
Which collection of three side lengths will NOT form a triangle?

10 in, 18 in, 12 in
10 in, 15 in, 6 in
10 in, 12 in, 15 in
06 in, 10 in, 18 in

User JeffP
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1 Answer

7 votes
D or the last one 06in, 10in, 18 since the shortest sides of the triangle added together should always be bigger than the longer side
User Paresh Barad
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