Answer :
A= 1/2 h ( sum of the bases) formula to find Area of a trapezoid
791= 1/2 h (56.5)
791= 28.25 h
28 = h
height of trapezoid= width of desk
Width = 28cm
Hope this helps
791= 1/2 h (56.5)
791= 28.25 h
28 = h
height of trapezoid= width of desk
Width = 28cm
Hope this helps