Question

Could 10.5, 8.0, and 4.0 be the side lengths of a triangle?

Answer 1

yes

Explanation:

for the sides to form a triangle then the sum of any 2 must be greater than the third.

10.5 + 8 = 18.5 > 4

10.5 + 4 = 14.5 > 8

8 + 4 = 12 > 10.5

then the 3sides could form a triangle