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The depth of an arch is the distance between:

<p><strong><a>A.</a></strong> <strong>ground level and springing line</strong> <strong><a>B.</a></strong> <strong>crown and springing line</strong> <strong><a>C.</a></strong> <strong>crown and ground level</strong> <strong><a>D.</a></strong> <strong>intrados and extrados.</strong></p> <p> </p>

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Question ajoutée par Alex Al Yazouri , General Manager , Al Mushref Cooperative Society
Date de publication: 2014/12/31
Wolf Klaas Kinsbergen
par Wolf Klaas Kinsbergen , Managing Director, Designer , ingenieursbureau KB International NV

The sagitta is the height of an arc.  It is the perpendicular from the midpoint of the arc's chord to the arc itself. Sagitta showing the radius of the arc and the chord length.  Depth of an arc

Engshams Civil
par Engshams Civil , مهندس مدني عام , مكتب هندسي

Thank you for the invitation

He agreed with the colleagues' answers

I believe the best choice is answer "D" intrados and extrados.

Alex Al Yazouri
par Alex Al Yazouri , General Manager , Al Mushref Cooperative Society

The depth of an arch is the distance between intrados and extrados.

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