Question

Layla plotted points P, Q, and R to represent the vertices of a triangle as shown in the figure below.

http://gyazo.com/0720a8c6e65d0c167f79413a89bbb683
What should Layla do to make triangle PQR a right isosceles triangle?

Move Q to a point on segment AB beyond the arc.

Move R to the point of intersection of segment AB and the arc.

Move R to the leftof segment AB beyond the arc.

Move Q to the point of intersection of segment AB and the arc