Triangles ABC and DEP are equal. what is the perimeter of the triangle DEP if AB = 3cm, BC = 4cm, CA = 5cm?

Since triangles ABC and DEP are equal, their sides will be equal. Therefore AB = DE = 3 centimeters, BC = EP = 4 centimeters, CA = PD = 5 centimeters.

The perimeter of a triangle is the sum of the lengths of all sides. So the perimeter of the triangle is DEP = DE + EP + PD = 3 cm + 4 cm + 5 cm = 7 cm + 5 cm = 12 centimeters.

Answer: 12 centimeters.

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