Question

The area of a quadrilateral is 360m^2 and the perpendiculars drawn to one of the diagnol from the opposite vertices are 10m and 8m. Find the length of the diagnol

Answer 1

$ar \: of \: quad = 1 \: by \: 2 \times( sum \: of \: perpendicular) \times digonal$
$360 = 1by2 \times (10 + 8) \times d$
$d = (360 \times 2)by18$
$d = 40m$

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