1. Which is a name for the angle shown? Select two answers.
(image but I can't post it due to url block)
A. ∠D
B. ∠C
C. ∠E
D. ∠EDC***
E. ∠ECD***
2. Ray MN and ray ML are two sides of an angle. What is a name of the angle?
A. ∠MNL
B. ∠LNM
C. ∠NML
D. ∠NLM***
3. Which of the following has zero width and an infinite length?
A. a point
B. a line segment
C. a line***
D. a plane
4. The measure of ∠B is 68°. What is the measure of its supplementary angle?
A. 22°
B. 90°
C. 112°***
D. 180°
5. What is the measure of a straight angle?
A. less than 90°
B. greater than 90° and less than 180°
C. 90°
D. 180°***
6. What are the measures of the marked angles?
(another image)
A.19°***(?)
B.27°
C.38°
D.90°
7.The measure of ∠M is 57°. What is the measure of its complementary angle?
A.33°***
B.90°
C.123°
D.180°
8. Frank has a compass but no straightedge. Which of the following can Frank construct with just the compass?
A. a triangle
B. a square
C. a hexagon
D. a circle***
9 answers
A. hexagon***
B. pentagon
C. octagon
D. heptagon
10. What is the formula for the area of a rectangle?
A. A = lw***
B. A = 2l + 2w
C. A = l + w
D. A = l² + w²
1. ∠EDC or ∠ECD
2. ∠NML
3. a line
4. 112°
5. 180°
6. 19°
7. 33°
8. a circle
9. hexagon
10. A = lw