HOW_MANY_EXTRA_EQUATIONS_ARE_POSSIBLE_IF_3_HINGES_ARE_THERE_IN_A_PLANAR_FRAME_IN_RELATION_TO_DSI??$

HOW_MANY_EXTRA_EQUATIONS_ARE_POSSIBLE_IF_3_HINGES_ARE_THERE_IN_A_PLANA

1.	HOW_MANY_EXTRA_EQUATIONS_ARE_POSSIBLE_IF_3_HINGES_ARE_THERE_IN_A_PLANAR_FRAME_IN_RELATION_TO_DSI??$
A.	6
B.	9
C.	3
D.	1
Answer» C. 3