Question

Which of the following cannot be the sides of a triangle? *
1 point
3 cm, 4 cm, 5 cm
2 cm, 5 cm, 7 cm
2 cm, 3 cm, 4 cm
2 cm, 6 cm, 5 cm​

Answer 1

Answer:

2cm, 5cm, 7cm cannot be the sides of a triangle

Answer 2

Answer:

Option 2 is the correct Answer.

2cm, 5cm and 7cm cannot be the sides of a triangle.

Explanation:

Sum of two sides of a triangle is always greater than the third side.

But,

$2 + 5 = 7 \\ 7 = 7$

In this case Sum of two sides (5 + 2) is not greater than the third side (7).

Hence these cannot be the sides of a triangle.