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I need help on 18. and 19. please (the first two)

I need help on 18. and 19. please (the first two)-example-1
User Luanjot
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1 Answer

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For first one it is C and second is D
Find it by adding the smallest 2 sides and make sure it is greater than the third if not, it can't be a triangle
User Benhsu
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