Try this free resource Area of Triangles to see how easy it is to implement in order give students/teachers instantaneous feedback/percentage correct. This free resource is one form from my bundle titled, Area of Polygons, Circles, and Compound Shapes-Google Forms Bundle. The bundle includes Self-Graded Assessments and extra practice worksheets--There are 15 Auto-Graded Google Forms included in this bundle which students use model representations to determine the area for rectangles, parallel