In a quadrilateral ABCD, AC-15 cm. The perpendicular drawn from Band D respectively to
ACmeasure 8 cm and 9 cm. Find the area of the quadrilateral.
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Step-by-step explanation:
We know,
Ar. of a quadrilateral
= \frac{1}{2} \times diagonal1 \times (length \: of \: the \: perpendiculars \: from \: the \: remaining \: two \: angles=21×diagonal1×(lengthoftheperpendicularsfromtheremainingtwoangles
= \frac{1}{2} \times 15 \times (8.2 + 9.1)=21×15×8 +9
=7.5×17
=127.5
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