Question: how to find the perimeter of sector?
Answer: l =
In other words, l is. of the circumference of the circle, which will give us the length of the arc.
= 2r +
Perimeter of the sector = 2 times radius plus arc length.
= 2r +
= 2 x 4 + x 2 x 3.14 x 4.
Perimeter = 2r +
= 2 x 7.2 + x 2 x 3.14 x 7.2.