# Test Your Skills On Geometry Quiz

7 Questions | Total Attempts: 289  Settings  • 1.
In the triangles above, what is the value of X?
• A.

15

• B.

18

• C.

6

• 2.
The supplementary angle of 175 degrees is acute.
• A.

True

• B.

False

• 3.
The angle bisectors of a rhombus are always ____________.
• 4.
To PROVE that the sum of the angles inside a triangle is always 180 degrees, what two theorems or postulates will help you out?
• A.

The Parallel Postulate and The Alternate Interior Angles Theorem

• B.

Ceva's Theorem and The Parallel Postulate

• C.

The Alternate Interior Angles Theorem and Ceva's Theorem

• 5.
In the video, are the triangles in part B similar?  Choose all that apply.
• A.

No, because we only can find two angles.

• B.

Yes, because we can find two parallel lines.

• C.

Yes, because the triangles look similar.

• 6.
Explain why the Parallel Postulate does not hold true in hyperbolic geometry.
• 7.
Extra Credit:  In the creation of a 9-point circle, which of the following are NOT used in its construction?
• A.

The midpoint of each side of the triangle

• B.

The intersection point of each angle bisector and its opposite side

• C.

The foot of each altitude

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