Question

Find the diagonal of a rectangle whose length is 16 cm and area is 192 sq.cm​

Answer 1

Answer:

20 cm is the correct answer

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Answer 2

Given:

        l = 16cm

        A = 192sq.cm

Using the formula:

                   A = w × l

              => w = A/l

d = √w² + l²

=> d = √(A/l)² + l²

       = √(192/16)² + 16²

       = √ (12)² + 256

       = √ 144 + 256

       = √ 400

      = 20

Therefore, the diagonal of the rectangle is 20cm.