Triangle problem.

Can you find out which triangle will have a bigger area among the following?

1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

Answer:
1st The first option will have a bigger area. This is because the second triangle is not possible. According to the formula: Side 1^2 + Side 2^2 = Side 3^2