Question

in a circle of radius 28 cm, an arc subtends an angle 90 degree at the centre. find the perimeter of the sector.

Answer 1

aloha user!!

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the radius of the circle is given to be 28 cm.

in order to find the perimeter of the sector formed we will use this fomula:

$\frac{theta}{360} ( 2 \pi r )$

$\frac{90}{360} (2) ( \frac{22}{7} )(28)$

$\frac{1}{4} (2) (22) (4) =\ \textgreater \ 44cm$

the perimeter of sector would be 44 cm


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hope it helps !!

peace out !!

Answer 2

Answer:

The perimeter of sector would be 44 cm

Step-by-step explanation: