A pyramid with a square base $ABCD$ is as shown in the diagram below. The dimensions are \(AB=BC=C

Question

A pyramid with a square base $ABCD$ is as shown in the diagram below. The dimensions are $AB=BC=CD=DA=4$ cm and $VA=VB=VC=VD=7$ cm. $N$ is a point at the foot of the perpendicular from $A$ to $VB$. Show that the length of $VN$ is $5.86$ cm. Find the angle between the plane $ANC$ and the horizontal.

Accepted Answer

(a) $VN=5.86$ cm (b) $23.8^\circ$

Basic Geometry - Three-Dimensional Geometry

Basic Geometry - Three-Dimensional Geometry

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