Question content area top Part 1 Cindy is a member of a volunteer group that built the play structure shown. Answer parts a to c. Question content area bottom Part 1 a. Cindy wants to add three more trapezoid boards evenly spaced between the bottom and top boards of the triangular frame. Based on the average lengths of the top and bottom boards​ shown, what will be the average lengths of each of the three additional​ boards? Explain. The new middle board is the midsegment of the trapezoid formed by the current​ boards, so it will have a length of enter your response here ft at its midsegment. The other two boards will be midsegments of trapezoids formed by the current top board and the new enter your response here ft​ board, and the current bottom board and the new enter your response here ft board. They will have lengths at their midsegments of enter your response here ft.