Chapter 3 Test B
Use the figure to find the measure of the angle. Explain your reasoning.
1.
2.
3.
4.
Find the measures of the interior angles.
5.
6.
Find the measure of the exterior angle.
7.
8.
Find the sum of the interior angle measures of the polygon.
9.
10.
Find the measures of the interior angles of the polygon.
11.
12.
Find the measures of the exterior angles of the polygon.
13.
14.
15. Tell whether the triangles are similar. Explain.
16. The measures of the acute angles of a right triangle have a ratio of 2 : 7. What is the measure of the smaller
angle?
17. Five angles of a hexagon measures
Find the sixth angle measure.
18. You are on a boat in the ocean, at point A. You locate a lighthouse at point D, beyond the line of sight of the
marker at point C. You travel 90 feet west to point B and then 36 feet south to point C. You travel 100 feet
more to arrive at point E, which is due east of the lighthouse. What is the distance from point E to the
lighthouse?
Chapter 3 Test B
Answer Section
1. ANS:
; The angles are alternate exterior angles.
PTS: 1
DIF: Level 1
REF: Ch 3 Test B
KEY: parallel lines | alternate exterior angles
2. ANS:
Sample answer: and
are supplementary, so
NAT: 8.G.5
MSC: Knowledge
PTS: 1
DIF: Level 1
REF: Ch 3 Test B NAT: 8.G.5
KEY: parallel lines | alternate exterior angles | vertical angles | corresponding angles
MSC: Knowledge
3. ANS:
The
angle and the
are corresponding angles.
PTS: 1
DIF: Level 1
REF: Ch 3 Test B NAT: 8.G.5
KEY: parallel lines | corresponding angles
MSC: Knowledge
4. ANS:
The
angle is supplementary to , and
and
are corresponding angles.
PTS: 1
DIF: Level 1
REF: Ch 3 Test B
KEY: parallel lines | corresponding angles
5. ANS:
NAT: 8.G.5
MSC: Knowledge
PTS: 1
DIF: Level 1
KEY: interior angles of a polygon
6. ANS:
REF: Ch 3 Test B
MSC: Knowledge
NAT: 8.G.5
PTS: 1
DIF: Level 1
KEY: interior angles of a polygon
7. ANS:
REF: Ch 3 Test B
MSC: Knowledge
NAT: 8.G.5
PTS: 1
DIF: Level 1
KEY: interior angles of a polygon
8. ANS:
REF: Ch 3 Test B
MSC: Knowledge
NAT: 8.G.5
PTS: 1
DIF: Level 1
KEY: exterior angles of a polygon
9. ANS:
REF: Ch 3 Test B
MSC: Knowledge
NAT: 8.G.5
PTS: 1
DIF: Level 2
KEY: interior angles of a polygon
REF: Ch 3 Test B NAT: 8.G.5
MSC: Comprehension
10. ANS:
PTS: 1
DIF: Level 2
KEY: interior angles of a polygon
11. ANS:
REF: Ch 3 Test B NAT: 8.G.5
MSC: Comprehension
PTS: 1
DIF: Level 2
KEY: interior angles of a polygon
12. ANS:
REF: Ch 3 Test B NAT: 8.G.5
MSC: Comprehension
PTS: 1
DIF: Level 2
KEY: interior angles of a polygon
13. ANS:
REF: Ch 3 Test B NAT: 8.G.5
MSC: Comprehension
PTS: 1
DIF: Level 2
KEY: exterior angles of a polygon
14. ANS:
REF: Ch 3 Test B NAT: 8.G.5
MSC: Comprehension
PTS: 1
DIF: Level 2
REF: Ch 3 Test B NAT: 8.G.5
KEY: exterior angles of a polygon
MSC: Knowledge
15. ANS:
no;
and
, so the triangles have different angle measures.
PTS: 1
DIF: Level 2
KEY: similar figures
16. ANS:
PTS: 1
KEY: scale factor
17. ANS:
REF: Ch 3 Test B NAT: 8.G.5
MSC: Comprehension
DIF: Level 1
REF: Ch 3 Test B
MSC: Comprehension
NAT: 8.G.5
PTS: 1
DIF: Level 2
KEY: interior angles of a polygon
18. ANS: 250 ft
REF: Ch 3 Test B
MSC: Knowledge
NAT: 8.G.5
PTS: 1
DIF: Level 2
KEY: similar figures
REF: Ch 3 Test B
MSC: Application
NAT: 8.G.5