A right triangle has a leg with a length of 21 units and a hypotenuse with a length of 42 units. Eunice states that because the hypotenuse is twice the length of the given leg, the right triangle is a 30-60-90 triangle. Select all statements that are true.

1. The measure of the remaining leg is 21[tex]\sqrt{3}[/tex] units
2. The angle opposite the side with length 21 units measures 30°
3. The perimeter of the triangle is 84 units
4. Eunice is not correct. It is a 45-45-90 triangle.
5. The measure of the remaining leg is 21 units.

Thank you! Whoever answers correctly gets 15 points!