Direction: Shakshi prepared a Rangoli in triangular shape on Diwali. She makes a small triangle under a big triangle as shown in figure.
Sides of big triangle are 25 cm, 26 cm and 28 cm. Also, ΔPQR is formed by joining mid points of sides of ΔABC.
Use the above data to help her in resolving below doubts.
Q. If colourful rope is to be placed along the sides of small ΔPQR. What is the length of the rope?