(iii)
According to question,
Diameter 
Radius = half of the diameter of the circle
Area of the sector 
![=\left[ \left( 22/7 \right)\times 212\times \left( {{100}^{\circ }}/{{360}^{\circ }} \right) \right]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-c717e95d45309bc32a60cd499064d2a4_l3.png "Rendered by QuickLaTeX.com")
Perimeter of the sector 
![=\left( 2\times 21 \right)+\left[ 2\times \left( 22/7 \right)\times 21\times \left( {{100}^{\circ }}/{{360}^{\circ }} \right) \right]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-1ab59683f1e751c75d0360bdded6f0f3_l3.png "Rendered by QuickLaTeX.com")
Find the area and perimeter of the following from (iii) Angle at the center
(iii)
According to question,
Diameter
Radius = half of the diameter of the circle
Area of the sector
Perimeter of the sector
