The rise of a parabolic arch at quarter points, is equal to – McqOptions

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1.	The rise of a parabolic arch at quarter points, is equal to
A.	times the rise of the crown
B.	times the rise of the crown
C.	times the rise of the crown
D.	times the rise of the crown
E.	times the rise of the crown.
Answer» E. times the rise of the crown.

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