Extended Traingle + Half - Moon

Utthita Trikonasana (Extended Triangle Pose)

Triangle Pose is the quintessential standing pose in many styles of yoga.
utthita = extended
trikona = three angle or triangle

From this pose you can go further and perform the:

Ardha Chandrasana (Half Moon Pose)

This pose is a highly effective strengthener for the legs and ankles. You have to sort of squint to see the half moon; try drawing a half-circle from the raised top hand through the lifted foot to the standing foot and supporting hand.