The cross-section of a canal is a trapezium in shape. Ifthe canl is 8 m wide at the top and 6 m wide at the bottom and the area of cross-section is 644 sq m, then the depth of the canal is

90 m

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92 m

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94 m

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96 m

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Solution

The correct option is A 92 m

Since, area = 644
$\frac{1}{2} (8 + 6) \times h = 644$
or $7 h = 644$
$∴ h = 92 m$

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The cross-section of a canal is a trapezium in shape. Ifthe canl is 8 m wide at the top and 6 m wide at the bottom and the area of cross-section is 644 sq m, then the depth of the canal is

The correct option is A 92 mSince, area = 644 12(8+6)×h=644or 7h=644∴h=92m

The correct option is A 92 m

Since, area = 644
$\frac{1}{2} (8 + 6) \times h = 644$
or $7 h = 644$
$∴ h = 92 m$