Q. 55.0( 1 Vote )

(i) The cross sectio

Answer :

(i) Area of a trapezium = (sum of parallel sides) × height
                          or 72 = (6 + 10) ´ h
                                               Þ h = 9 m
(ii) Area of trapezium = (a + b)×h
                            = (12 + 16)휐
                            = 140 cm

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