three uses 8 pieces of glass per square foot to make a stained glass window how many pieces of glass will he need to make a window that is 864 square inches
1 foot = 12 inches 864/12=72 The window is 72 square feet. A man uses 8 pieces of glass per square foot to make a stained glass window. So he needs to use 72*8=576 pieces of glass.
