How can the area of this triangle be determined by forming a
rectangle?
Select from the drop-down menús to correctly complete the
statements.
Copy and rotate the triangle and place it next to the existing
triangle to form a rectangle. The length of the rectangle is
Choose... units. The width of the rectangle is
Choose ✓units. The area of the rectangle is
Choose... square units.
The area of the triangle is half the area of the rectangle, so the
area of the triangle is Choose...square units.