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1. |
In which figure is  a median and an angle bisector of 
and  is an altitude? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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2. |
Which problem-solving strategy is used in indirect proofs? |
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A. |
draw a diagram |
B. |
decision-making |
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C. |
working backward |
D. |
guess and check |
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Hint |
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3. |
 has vertices M(3, 5), N(1, -2), O(-3, 2). Order the angles from
the greatest measure to the least measure. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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4. |
Is it possible to draw a triangle with sides measuring 13, 21, and 39? Explain |
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A. |
Yes; 13 + 21 is less than 39. |
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B. |
No; 13 is less than 21 + 39. |
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C. |
Yes; the sides of the triangle are not all the same lengths. |
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D. |
No; 39 is greater than 13 + 21. |
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Hint |
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5. |
In the figure,  is a median in   and  Which statement is always true? |
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A. |
If  then  |
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B. |
If  then  is acute. |
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C. |
x = 12 |
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D. |
If  then RS < TS. |
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Hint |
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6. |
In which picture is  an angle bisector? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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7. |
Name the property that justifies if a < b, then a + c < b + c. |
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A. |
Comparison Property |
B. |
Addition Property |
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C. |
Subtraction Property |
D. |
Transitive Property |
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Hint |
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8. |
If 15 and 20 are the lengths of two sides of a triangle, between what two numbers must the measure of the third side fall? |
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A. |
5 and 35 |
B. |
10 and 25 |
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C. |
15 and 20 |
D. |
10 and 35 |
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Hint |
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9. |
What is the relationship between AM and BM? |
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A. |
It cannot be determined with the information given. |
B. |
AM < BM |
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C. |
AM = BM |
D. |
AM > BM |
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Hint |
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10. |
State the assumption that could be used to start an indirect proof of the statement If 2n < 6, then n < 3. |
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A. |
n > 3 |
B. |
n 3 |
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C. |
n < 3 |
D. |
n = 3 |
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Hint |
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