Question

Q4. Find the number of all possible triplets in the array that can form the triangle( condition is a+b>c) .

Answer 1

here goes your answer. 3,4,5 since 3+4 is more than 5. 6,8,10 and 5,12,13 and 9,12,15 and 8,15,17 and 12,16,20 and 15,20,25 and 7,24,25

Answer 2

A=(a, b, c) where
$a + b > 0 \: b + c > 0 \: c + a > 0$