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Wednesday, 08 April 2026
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(a) Describe, with the aid of a suitable diagram, an open traverse (b) A compass ...

(a) Describe, with the aid of a suitable diagram, an open traverse
(b) A compass traverse round a school compound produced the following field record:
Line Length (mm) Bearing
AB 370 260º
BC 450 198°
CD 265 110°
DE 560 35°
EA 140 330°



Use the data above to:
(i) plot the area of the compound on a scale of 1cm to 50m
(ii) find the direct distance between D and A, in metres.
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    Correct Answer: Option n
    Explanation:

    (a) A transverse is a series of connected straight lines whose lengths and bearings are measured. An open transverse starts from one end oF a particular road or path to another (See diagram below). It is transverse, i.e. straight line that doesn't close at the point of origin.

    Line Length (mm) Length (cm) Bearing
    AB 370m 7.4cm
    BC 450m 6.5cm
    CD 265m 5.3cm
    DE 560m 11.0cm
    EA 140m 2.8cm



    Use the data above to: (i) plot the area of the compound on a scale of 1 cm to 50m.
    (ii) find the direct distance between D and A, in metres = 12.6cm. Scale = lcm to 50m (1:5,000) 12.7cm = 12.7 x 50 = 635m

    Scale: 1:5000 (1cm to 50m)

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