👉 In mathematics, an "umbellately" object is one whose surface area or volume can be expressed as a sum of squares. This property allows for the calculation of volumes and areas in terms of sums of squares. For example: 1. A sphere with radius \( r \) has a surface area of \( 4\pi r^2 \). 2. A cone with radius \( r \) and height \( h \) has a volume of \( \frac{1}{3}\