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The offset (in m) taken to a chain line to curve boundary are given below

written 5.7 years ago by

• modified 4.5 years ago

Ch.	0	5	10	15	20	25	35	45	55	65
Offsets(m)	2.5	3.8	8.4	7.5	10.5	9.3	5.8	7.8	6.9	8.4

Find the area between the chain lines the 1st and last ordinate and boundary by

1. Trapezoidal rule

2. Simpson’s rule

3. Co-ordinate rule (average ordinate rule)

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1 Answer

Ch.in m	Interval (d)	ordinate	Offset in m
0		Y1	2.5
5		Y2	3.8
10	d1 = 5	Y3	8.4
15		Y4	7.5
20		Y5	10.5
25		Y6	9.3
25		Y7	9.3
35		Y8	5.8
45	d2 = 10	Y9	7.8
55		Y10 …

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