Answer
The longest side is 2
the side opposite 60° is 3$\sqrt 3$ or 5.196
Work Step by Step
The longest side of a 30°–60°–90° triangle is twice the shortest side and the side opposite the 60° angle is $\sqrt 3$ times the shortest side.
Given that
Shortest side = 3
Therefore
Longest side = 2 $\times $ shortest side = 2$\times$3 = 6
Side opposite 60° = $\sqrt 3\times $ shortest side = $\sqrt 3 \times$3 = 3$\sqrt 3$
Side opposite 60° $\approx 5.196$
