Half the sum of 2 numbers is 26. if one number is 9 what is the other number

26 x 2 = 52 - 9 = 43

43 is the other number. Half the sum of the two numbers is 26, so if you multiply by two to find the full sum, you can use it to subtract by the first number 9. Then you get 43.

1 and 2

step-by-step explanation:

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 "