the figure alongside represents the horizontal
cross-section of a pond. ABDE is an isosceles
trapezium in which AE = 1 m, ED = 5 m,
BD 7 m. BCD is a semi-circle on diameter
er
Q
BD. The sides of the pond are vertical and the
depth of the water in the pond is 50 cm. Find the
perinmeter of the given cross-section.
(i) area of the sides in contact with water.
(ii) distance between AE and BD.
(iv) volume of water in the pond.
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Answer:
(i) area of the sides in contact with watet
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