In a rectangle with side lengths of 3cm and 4cm, a diagonal 5cm long is drawn, calculate the perimeter

In a rectangle with side lengths of 3cm and 4cm, a diagonal 5cm long is drawn, calculate the perimeter of each of the resulting triangles.

The perimeter is the sum of the lengths of the sides of the figure, which means that to find the perimeter, you need to add three sides of the resulting triangles. The diagonal of the rectangle is the hypotenuse for both triangles, and the sides with 4 cm and 3 cm legs, respectively.

P = 3 + 4 + 5 = 12 cm.

And since the diagonal divides the rectangle into two identical triangles, then their perimeters will be equal.