Find the perimeter of a square if its diagonal is 10 cm July 8, 2019 16 32 64 128 Find the perimeter of a square if its diagonal is 10 root 2 cm Find the perimeter of a square if its diagonal is 10 √ 2 cm Find the perimeter and area of the figure pictured below How to find the perimeter of a triangle Perimeter of rectangle formula Perimeter of rectangle and area