Question

4. A spheroid (or oblate spheroid) is the surface obtained by rotating an
ellipse around its minor axis. The bowl in Figure 1.41 is in the shape of
the lower half of a spheroid; that is, its horizontal cross sections are
circles while its vertical cross sections that pass through the center are
semi-ellipses. If this bowl is 10 in wide at the opening and V10 in deep
at the center, how deep does a circular cover with diameter 9 in go into
the bowl?​

Answer 1

Step-by-step explanation:

Ellipsoid, closed surface of which all plane cross sections are either ellipses or circles. An ellipsoid is symmetrical about three mutually perpendicular axes that intersect at the centre.