1 A 1 B 1 C 2 A 2 B 3 4 5

Q. 3

Is it possible to design a rectangular mango grove whose length is twice its breadth, and the area is 800m²? If so, find its length and breadth.

Class 10th AP- Mathematics 5. Quadratic Equations

Answer :

Let Breadth be x and length be 2x

Area = (Length × Breadth) = 800m²

2x² = 800

⇒ x² = 400

Discriminant = 4 × 1 × 400 = 1600

Hence it is possible

⇒ x = ±20

Neglecting the negative term we have,

Breadth = 20m

Length = 40m

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