the length of the side of two squares are 4cm and 6cm .Find in its simplest form the ratio of them perimeter and area

Length of side of a square = 4cm

Perimeter of this square :

Thus, the perimeter of this square = 16 cm

Length of side of the second square = 6 cm

Perimeter of this square :

Thus, the perimeter of this square = 24 cm

Ratio of the perimeters of both the squares :

Thus, the ratio of the perimeter of both the squares = 2:3

Length of side of the first square = 4 cm

Area of this square :

Thus, the area of the first square = 16 cm²

Length of side of the second sqaure = 6 cm

Area of this square :

Thus, the area of the second square = 36 cm²

Ratio of the areas of the two squares :

Thus, the ratio of the areas of the two squares = 4:9

Therefore, the ratio of the perimeter of the squares = 2:3 and the ratio of the areas of these squares = 4:9.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.