Alexis has a rectangular piece of red paper that is 4 centimeters wide. it’s length is twice it’s width. she glues a rectangular piece of blue paper on top of the red piece measuring 3 centimeters by 7 centimeters. how many square centimeters of red paper will be visible on top?

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking: