1. 

Find the number of triangles in the given figure.

A. 8
B. 10
C. 12
D. 14

2. 

Find the minimum number of straight lines required to make the given figure.

A. 16
B. 17
C. 18
D. 19

3. 

Find the number of triangles in the given figure.

A. 22
B. 24
C. 26
D. 28

4. 

Find the number of triangles in the given figure.

A. 12
B. 18
C. 22
D. 26

5. 

Find the number of triangles in the given figure.

A. 18
B. 20
C. 24
D. 27