64 squares on a chess board
64 black and white squares ona chess board
squares on a chess (checker) board
If it was 64 then it would be Squares on a Chess Board
64 squares on a checkerboard
64 squares on a checkerboard
64 squares in checkerboard (or chess board).
64 squares on a chess board
It is sqrt{s*(s-a)*(s-b)*(s-c)} where the lengths of the three sides are a, b and c units and s = (a+b+c)/2.
Use the Hero's formula: Let s = (a + b + c)/2. Then the area of the triangle equals√[s(s - a)(s - b)(s - c)], where a, b, and c denote the sides of the triangle.
Let the sides be a, b, c Area = sq rt [s(s-a)(s-b)(s-c)] where s= 1/2 (a+b+c)
Suppose the sides are a, b and c units. Calculate s= (a+b+c)/2 Then Area = sqrt[s*(s-a)*(s-b)*(s-c)] square units