( 1) 1: 1000 = 0. 1:xx = 1(m) 1: 1000 = 5:xx = 50(m)65438。 8)* 50+(38.65438 square +05/2+8) *3. 14=5009 square meters (this is approximately equal to) circumference: 38.15+2 * 8 * 3.15+50.

(2)[( 19.075+8 square meters)-19.075 square meters ]+8*50*2= 1 169.2 square meters15cm = 0./kloc-.

1169.2/0.15 = 7995 cubic meters (note that it is approximately equal to)

(3)1169.2 * 200 = 233840 (yuan)