Question

The total area of 64 small squares of a chessboard in 400 cm . If there is 4 cm wide border all along the chessboard, then find each side of the chessboard. ​

Answer 1

Step-by-step explanation:

Let the length of the side of the chess board be x cm. Then,

Area of 64 squares = (x−4)

2

Therefore,

(x−4)

2

=64×6.25

x

2

−8x+16=400

x

2

−8x−384=0

x

2

−24x+16x−384=0

(x−24)(x+16)=0

x=24 cm

Answer 2

Answer:

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