Become a shape expert by exploring trapezoids and their missing angles. Our resource provides warm-up and timed drill activities to practice procedural proficiency skills. Use a protractor to measure angles. Then, label those angles as acute, right or obtuse. Find the missing angles on the triangles and quadrilaterals. Calculate the area of squares, rectangles, trapezoids, triangles, and circles. Label the parts of a circle. Find the diameter, radius and circumference of each circle. Identify pairs of lines as parallel, perpendicular, skew, or intersecting. Calculate the volume of cubes and rectangular prisms. The drill sheets provide a leveled approach to learning, starting with grade 6 and increasing in difficulty to grade 8. Aligned to your State Standards and meeting the concepts addressed by the NCTM standards, reproducible drill sheets, review and answer key are included.