Question

A chess board contains 64 equal squares and the area of each square is 6.25 cm2

. A

border round the board is 2 cm wide. The length of the side of the chess board is

a) 8 cm

b) 12 cm

c) 24 cm

d) 36 cm​

Answer 1

Answer:

the length of each square is √6.25cm

=2.5cm

in one row the number of squares are√64=8

so length of 8 square s is 8×2.5cm=20 cm

so the length of the side of the chess board is (8+2+2)cm=12cm