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3. Mrs. Washington is putting up a wallpaper border
around her son's bedroom. The bedroom is the
shape of a rectangle that is 18 feet wide by 19 feet
long. How many feet of border will Mrs.
Washington need?

if im undersanding the question correctly, its organized from 10

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 "

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step-by-step explanation: