What will be the perimeter of a triangle having two sides equal to 60cm and the third side as 20 cm?

Calculating the perimeter of the rectangle,
Perimeter corresponds to the distance that is covered by a closed figure's boundary.
Formula Used:
The given finger has 3 sides. So it is a triangle.
The lengths of sides of the triangle are 60 cm , 60 cm and 20 cm.
Now the perimeter of the triangle:
Hence, the perimeter of the triangle is 140 cm.
Therefore, option 3 is correct.