LESSON TWENTY-FIFTH.
REVIEW.
How many quadrilaterals in the diagram. (Diagram [20].)
Why is Fig. a d a quadrilateral?
What is a quadrilateral?
On account of the number of its angles, what may it be called?
Name all the quadrilaterals.
Name three trapeziums.
Why is Fig. 5 a trapezium?
What is a trapezium?
Name two trapezoids.
Why is Fig. 6 a trapezoid?
Name its parallel sides.
What is a trapezoid?
Name six parallelograms.
Why is Fig. 4 a parallelogram?
Name its two pairs of parallel sides.
What is a parallelogram?
What two names can you give to Fig. 4?
Why the first? Why the second?
What two names may be given to Fig. 7?
Why the first? Why the second?
What two to Fig. 6?
Why the first? Why the second?
Diagram 21.
