Question

The diagram shows a sector of a circle of radius 8cm. The length of the arc PQ is 6.4cm. Find the area of the sector. P 8 cm 6.4 cm e​

Answer 1

Step-by-step explanation:

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so now here we have to use formula showing relation between both area of sector and also length of an arc

ie nothing but

area of sector=length of an arc×radius/2

substitute given values in formula

we get

area of sector=6.4×8/2

=6.4×4

=25.6 cm.square

hence area of sector is 25.6 cm.square

Answer 2

Answer:

the arc will be rotated so it will be triangle or cone.

so triangle area formula is side *side* side.

if one is 8 cm so another will be 8 cm.

so answer is 8cm*8cm*6.4cm.

16 into 6.4cm - 78.4 cm.

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