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9. Find the area of quadrilateral ABCD, where BD = 22 cm. CE-7 cm and AF-6 cm. |
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Answer» We know area of triangle is 1/2 × base × height Area of ABCD = Ar(∆BCD) + Ar(∆ABD) = 1/2 × EC × BD + 1/2 × AF × BD = 1/2 × 7 × 22 + 1/2 × 6 × 22 = 77 + 66 = 143 cm² |
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