What is the value of 9 squared

A. 9
B. 18
C. 81
D. 36

c

Step-by-step explanation:

In mathematics, a square number or perfect square is an integer that is the square of another integer, or the product of two integers. For example, nine is a square number since it is equivalent to 32 and maybe three.

...

Square Number.

NumberSquare

749

864

981

10100

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "