6th Grade Math Textbook, Progress

Problem-Solving Applications: Mixed Review

10-20

Solve each problem. Explain the method you used.

Ms. Widsky’s class

created a class

pennant with this

design:

0 1. Classify quadrilateral GHKJ. What is the

sum of the measures of its angles?

0 2. Identify one acute angle, one right angle,

and one obtuse angle.

0 3. Is 
HKLscalene, isosceles, or equilateral?

Is it acute, right, or obtuse? Explain.

0 4. Name 2 pairs of alternate interior

angles if AD

ML
.

Which of the following pairs of angles are

adjacent? complementary? supplementary?

Which of the angles form a linear pair?

5. CHG, GHK 6. KLH, HDC


6. MJF, GJF 8. LHD, DHC


7. The four faces of a sculpture are equilateral triangles.
   The base is a rectangle. What shape is the sculpture?


8. The class creates these four floor plans. Which two
   plans are congruent? Which three are similar?

Use the diagram for problems 11–12.

11. Ms. Widsky’s class designed a circular rug like
    the one at the right. Name two chords.


12. Name two central angles in this pattern.
    Are they acute, obtuse, or right?

A B C D

M J K L

E F G H

W

T

U

V

X Z

Y

A

B

C D

8206-2_368-369 10/7/07 12:01 PM Page 368