Answer :
The area of the parallelogram is 26 × 10 = 260 cm^2 ;
The area of equilateral triangle is 0.4 cm^2 ;
The number of triangles can Devi fit on the gris is 260 ÷ 0.4 = 260 × ( 10 / 4 ) = 2600 / 4 = 650 ;
The area of equilateral triangle is 0.4 cm^2 ;
The number of triangles can Devi fit on the gris is 260 ÷ 0.4 = 260 × ( 10 / 4 ) = 2600 / 4 = 650 ;