Answer :

Let the breadth of mango grove be *l*.

Length of mango grove will be 2*l*.

Area of mango grove = (2*l*) (*l*) = 2*l*^{2}

2l^{2} = 800

=

⇒

⇒ l^{2} = 400

However, length cannot be negative.

Therefore, breadth of mango grove = 20 m

Length of mango grove = 2 × 20 = 40 m

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