8 Cumulative Test Prep

Vocabulary Builder

As you solve test items, you must understand the meanings of mathematical terms. Choose the correct term to complete each sentence.

1. In a right triangle, the (sine, cosine) of an acute angle is the ratio of the length of the side opposite the angle to the length of the hypotenuse.
2. Polygons that have congruent corresponding angles and corresponding sides that are proportional are (similar, congruent) polygons.
3. Angles of a polygon that share a side are (adjacent, consecutive) angles.
4. A (proportion, ratio) is a comparison of two numbers using division.

Multiple Choice

Read each question. Then write the letter of the correct answer on your paper.

1. What is the approximate area of the rectangle below?

   

   1. 102  cm 2 102 , cm squared
   2. 75  cm 2 75 , cm squared
   3. 63  cm 2 63 , cm squared
   4. 45  cm 2 45 , cm squared

2. Δ A B C cap delta eh b c has A B = 7 , B C = 24 ,  and  C A = 24 . eh b , equals 7 comma b c . equals 24 comma , and c eh , equals 24 , . Which statement is true?

   6. Δ A B C cap delta eh b c is an equilateral triangle.
   7. Δ A B C cap delta eh b c is an isosceles triangle.
   8. ∠ C angle c is the largest angle.
   9. ∠ B angle b is the smallest angle.

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