lindalu
29.12.2021 •
Mathematics
(b)The figure below shows the cross-section of a tunnel in form of a major segment of a circle. The perpendicular height and the chord are each 4.8m. (i) Calculate the diameter of the tunnel. (3mks) 14.8m 4.8m (ii) Determine the cross-section area of the tunnel. (5mk)
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Ответ:
1162-46+7=1123
52+86-9=129
1123-129= 994
994