Question

perimeter of the sector​

Answer 1

Perimeter of Sector of Circle Formula

The formula for the perimeter of the sector of a circle is given below :

Perimeter of sector = radius + radius + arc length

Perimeter of sector = 2 radius + arc length

Arc length is calculated using the relation :

Arc length = radius × central angle

Therefore

Perimeter of sector = 2 Radius + (radius × central angle)

In the form of symbols, this formula is represented more conveniently as under :

P = 2 r + r θ

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Answer 2

Heyaa !!!

The formula for finding area of sector is

${Φ/360°}$ π $r^2$