
PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoPerimeter of the sector:
The perimeter of the sector is defined as the sum of the two radii , and the length of the arc . It looks like a piece of a pie or a piece of pizza.

Perimeter = r+r+l=2r+l units.
Perimeter of a semicircle:
The perimeter of a semicircle is defined as the sum of the two radii , and the length of the arc . In this, we substitute the value of l = .

Perimeter of a semicircle = l+2r (where l=\pi r).
=\pi r + 2 r = (\pi + 2)r units.
Perimeter of a circular quadrant:
The perimeter of a circular quadrant is defined as the sum of the two radii , and the length of the arc . In this, we substitute the value of l = .

Perimeter of a quadrant = l+2r (where l=\frac{\pi r}{2}).
=\frac{\pi r}{2} + 2r = \left(\frac{\pi}{2} + 2 \right) r units.