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1. |
Which figure is an isosceles triangle? |
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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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2. |
Refer to the figure shown. Name the vertices of the equilateral triangle. |
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A. |
W, X, Y |
B. |
U, V, Z |
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C. |
X, Y, Z |
D. |
U, Z, W |
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Hint |
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3. |
Triangle KMS is equilateral. Find KM if KM = x + 6, KS = 2x – 3, and MS = 4x – 21. |
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A. |
15 |
B. |
21 |
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C. |
9 |
D. |
4 |
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Hint |
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4. |
Which statement is not true? |
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A. |
In an isosceles triangle, the base is congruent to one of the legs. |
B. |
A triangle cannot be scalene and isosceles. |
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C. |
A triangle can be obtuse and isosceles. |
D. |
A triangle cannot be obtuse and contain a 90° angle. |
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Hint |
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5. |
 ABC is ______. |
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A. |
isosceles and scalene |
B. |
equilateral |
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C. |
scalene but not acute |
D. |
scalene and acute |
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Hint |
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