Find the perimeter of the KMР triangle, if the length of the KM side is 5cm8mm, the MР side is 1cm5mm longer

Find the perimeter of the KMР triangle, if the length of the KM side is 5cm8mm, the MР side is 1cm5mm longer than the KM side, but shorter by 2cm3mm than the РK side.

5 cm 8 mm = 5 * 10 mm + 8 mm = 50 mm + 8 mm = 58 mm.
The first step is to calculate the length of the MP side:
1) 58 mm + 15 mm = 73 mm.
The second step is to calculate the length of the side of the RK:
2) 73 mm + 23 mm = 96 mm.
Now you can calculate the perimeter of a triangle using the formula the sum of the lengths of its three sides:
3) 58 mm + 73 mm + 96 mm = 227 mm = 22 cm 7 mm.
Answer: the perimeter of the triangle is 22 cm 7 mm.