Question

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

Answer 1

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