Which sequence of transformations on the red triangle will map it onto the missing portion of the square?

A 90° counterclockwise rotation about the origin and then a translation 16 units right and 16 units up

Solution - Rotating the triangle 90° counterclockwise will take the triangle to 3rd quadrant and then further moving it 16 steps right will take it to 4th quadrant and followed by 16 steps upward will take it to the desired position which is in 1st quadrant.