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Geometry: Basic Geometry

1. Line segment AC has a midpoint of B. D is the midpoint of AB. If AD is equal to 18, what does DC equal?

(A)64

(B)18

(C)36

(D)72

(E)54

Star

The figure is drawn to scale.

2. In the figure above, how many lines of symmetry does the figure have?

(A)6

(B)5

(C)4

(D)3

(E)1

 

Rays

3. Ray AC bisects $\angle$BAD. Ray AD bisects $\angle$BAE.  $\angle$DAE is 25$^\circ$. Based on the information given, which angle can you not find? 

(A)$\angle$CAE

(B)$\angle$DAE

(C)$\angle$CAB

(D)$\angle$FAE

(E)$\angle$EAB

 

Rays

4. Ray AE bisects $\angle$BAF. $\angle$BAC, $\angle$CAD, and $\angle$DAE are all congruent. What is the value of $\angle$DAF if $\angle$EAF is 60$^\circ$?