Find the area of a quadrilateral one of whose diagonals are 30 cm long and the perpendiculars from the other two vertices are 19 cm and 11 cm respectively
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In quadrilateral ABCD
AC = 30cm
BN = 11cm
DM = 19cm
=> area of quadrilateral ABCD
= ar(∆ABC) + ar(∆ADC)
= (1/2 ×30 × 11) +( 1/2×30×19)
= 450 cm²
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shinjinidamani:
Thank you so much!
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