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1. |
Triangle RST is isosceles with  as the vertex angle. If ST = 3x - 11, SR = x + 3, and RT = x - 2, find RT. |
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A. |
9 |
B. |
7 |
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C. |
14 |
D. |
5 |
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Hint |
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2. |
What is the measure of  |
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A. |
62 |
B. |
32 |
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C. |
31 |
D. |
120 |
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Hint |
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3. |
 by the _______________. |
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A. |
SSS Postulate |
B. |
SSA Postulate |
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C. |
SAS Postulate |
D. |
ASA Postulate |
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Hint |
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4. |
In   is the _____. |
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A. |
median |
B. |
altitude |
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C. |
perpendicular bisector |
D. |
all of these |
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Hint |
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5. |
Order the steps for writing an indirect proof. |
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A. |
1, 2, 3 |
B. |
3, 2, 1 |
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C. |
2, 1, 3 |
D. |
2, 3, 1 |
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Hint |
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6. |
Is it possible to draw a triangle with sides measuring 13, 21, and 39? Explain |
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A. |
Yes; the sides of the triangle are not all the same lengths. |
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B. |
No; 13 is less than 21 + 39. |
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C. |
Yes; 13 + 21 is less than 39. |
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D. |
No; 39 is greater than 13 + 21. |
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Hint |
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7. |
In parallelogram ABCD, AB is parallel to_______. |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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8. |
The measures of a pair of base angles of an isosceles trapezoid are
7x - 12 and 5x + 6. Find the value of x. |
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A. |
3 |
B. |
6 |
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C. |
9 |
D. |
12 |
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Hint |
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9. |
Food Some cafeteria trays are shaped like isosceles trapezoids so they will fit around the tables. If the measures of one pair of base angles of a tray are 120, what are the measures of the other pair of base angles? |
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A. |
120 |
B. |
90 |
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C. |
60 |
D. |
240 |
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Hint |
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10. |
Which figure is not a polygon? |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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11. |
If    then triangle WXY is congruent to triangle _______. |
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A. |
YZW |
B. |
WYZ |
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C. |
WZY |
D. |
ZWY |
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Hint |
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12. |
Which postulate can be used to prove the triangles congruent? |
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A. |
ASA Postulate |
B. |
SAS Postulate |
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C. |
SSS Postulate |
D. |
not possible |
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Hint |
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13. |
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. |
15 and 20 |
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C. |
10 and 25 |
D. |
10 and 35 |
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Hint |
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14. |
In parallelogram ABCD,  B  ________. |
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A. |
D |
B. |
A and C |
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C. |
C |
D. |
A |
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Hint |
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15. |
Find the measure of  . |
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A. |
75° |
B. |
29° |
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C. |
140° |
D. |
110° |
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Hint |
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16. |
Which postulate is not a way to prove two triangles are congruent? |
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A. |
SSS Postulate |
B. |
ASA Postulate |
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C. |
SAS Postulate |
D. |
AAA Postulate |
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Hint |
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17. |
What best describes  |
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A. |
perpendicular bisector |
B. |
angle bisector |
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C. |
altitude |
D. |
median |
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Hint |
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18. |
Complete the section of the indirect proof.
mW is a right angle. Therefore, mW = 90° by _______________. |
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A. |
definition of perpendicular lines |
B. |
angle addition postulate |
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C. |
definition of a right angle |
D. |
definition of perpendicular bisectors |
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Hint |
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