1. | A right triangle is also equilateral |
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B. |
C. |
2. | If a triangle has an obtuse angle, then its orthocenter is outside the triangle. |
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B. |
C. |
3. | In a rectangle, the perpendicular bisectors of the two diagonals are perpendicular |
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B. |
C. |
4. | If an equilateral triangle shares 2 sides with a parallelogram, then it is a rhombus. |
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B. |
C. |
5. | The base of an isoceles triangle is greater than the sum of the two legs |
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B. |
C. |
6. | If two diameters of a single circle are drawn, then the segments connecting 2 adjacent endpoints of the diameters are congruent. |
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B. |
C. |
7. | The exterior angle of a regular polygon is less than an interior angle. |
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B. |
C. |
8. | In a triangle, the centroid and incenter are the same point. |
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B. |
C. |
9. | If an angle inscribed in a circle is bisected, the bisection ray passes through the center. |
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B. |
C. |
10. | The longest distance in a cube is root 3 times its side. |
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B. |
C. |
11. | If the trisection points of two sides of an isoceles triangle are connect to each other trisection point that is non-adjacent, the figure formed by these lines an isoceles trapezoid. |
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B. |
C. |
12. | If the midpoints of all the sides of the equilateral triangle are connected, and this process is repeated 3 more times with the resulting triangle from the previous step, then the area of the final triangle is 1/256 the original area. |
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B. |
C. |
13. | A line segment that is tangent to a circle O at its midpoint has its endpoints at A and B. If AB = the diameter of circle O, then triangle OAB is a right triangle. |
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B. |
C. |