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1. |
Classify the triangle by its angles and its sides. |
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A. |
right and isosceles |
B. |
obtuse and equilateral |
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C. |
acute and isosceles |
D. |
right and scalene |
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Hint |
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2. |
Find the measure of each angle in  if  °
and  °, and  is a right angle. |
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A. |
40°, 50°, 90° |
B. |
55°, 35°, 90° |
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C. |
30°, 60°, 90° |
D. |
45°, 45°, 90° |
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Hint |
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3. |
Choose the false statement. |
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A. |
An equilateral triangle has three acute angles. |
B. |
An obtuse triangle has two obtuse angles. |
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C. |
A triangle can have three acute angles. |
D. |
A right triangle has two acute angles. |
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Hint |
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4. |
Find the value of x in  RST if m  R = 3x°, mS = 3x°, and mT = 90°. |
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A. |
x = 45 |
B. |
x = 15 |
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C. |
x = 20 |
D. |
x = 10 |
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Hint |
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5. |
Classify the triangle by its angles and by its sides. |
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A. |
obtuse, isosceles |
B. |
acute, scalene |
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C. |
acute, isosceles |
D. |
obtuse, scalene |
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Hint |
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