Extracted text: 3. The boundary of the water surface of a reservoir is shown by irregular outline KLMNOPQR. Soundings were taken on parallel ranges QK, PL, and OM for the purpose of determining the volume of water in the reservoir. The horizontal distances (m) which were measured for locating the ranges and the soundings, and also the depth (m) which were measured where soundings were taken are shown. Calculate the following: a. Areas (sq.m.) of the cross-sections of ranges QK, PL, and OM. Assume that the cross-sectional areas of ranges R and N are negligible or nearly zero. b. Volume (cu.m.) of water between ranges. c. Total volume (cu.m.) of water contained in the reservoir. R 5.275 Q 858 K. -5.591- -7.874 4.754 612 2 450 6.495 -6.725 3.052- -7.151- -6.499- -5.498- 2.55A 1.076 2.077 2.636 3.428 8.390 -5.251- -3.676- -5.994 -5.497- 6.031- 0873 0.902 M 1.714 2.702 9. 106 N