1.

In the quadrilateral ABCD ∠A = ∠C = 90°, AE = 5cm and BE = 12cm and AC = 21cm. If DF = x, then the value of x is(1) \(6\frac{2}{3}\) cm(2) \(\frac{10}{7}\) cm(3) 11 cm (4) 13 cm

Answer»

Correct option is  (1) \(6\frac{2}{3}\) cm



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