a) 17cm b) 20cm c) 23cm d) 26cm
Area Calculation MCQ 2: Total area of the 64 small squares of aches board is 400cm2. There is 3cm wide border around the chess board. What is the length of each side of the chess board
As seen above, one side of the given area is made up of 8 small square !
==> One side of the given area\( =2.5\times 8=20 cm \)
From figure above;
Width of border is 3cm, so ;
Length of One side of chess board altogether \( 3+20+3=26 cm \)
So the option d is correct !