The following conclusion is true. Is the argument valid or invalid?

A scalene triangle has a largest angle.

A scalene triangle has a longest side.

The largest angle in a scalene triangle is opposite the longest side.

Is this argument valid or invalid?

Valid or Invalid

A scalene triangle has a largest angle.

A scalene triangle has a longest side.

The largest angle in a scalene triangle is opposite the longest side.

Is this argument valid or invalid?

Valid or Invalid