Unit 1 Pretest
Answer Key
[1] Sample answer:
The figure has 4 sides. It has no right angles. It has 2 pairs of parallel sides. It is a
rhombus
[2] a laser beam
[3] Sample answer:
[4]
[5] a. parallelogram
b. Sample answer:
[6] Sample answer:
[7] Sample answer:
[8]
[9]
[10]
[11]
[12] a. B, C
b. Sample answer: B has two sides that cross each other.
[13]
[14] a. rectangle
b. trapezoid
c. pentagon
[15] Sample answer:
[16] Sample answer:
[17]
[18] Sample answer:
[19] Sample answers: a. Place D and F in Group 1 and E and L in Groups 2. All the
polygons in Group 1 are regular polygons. All the polygons in Group 2 have at least one
right angle.
b. Polygon belongs in Group 1 because it is a regular polygon.