the cross section ABCD of a swimming pool is a trapezium width = 14cm depth at the shallow and Is 1.5cm and at the depth and is 8cm. find the area of cross section
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Step-by-step explanation:
From the figure,Area of cross section=area of rectangle ABED+area of △DEC
=14×1.5+1/2×6.5×14=14×3/2 + 1/2×6.5×14
=21+7×6.5
=21+45.5
∴Area =66.5 m²
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