Question

The radius of a circle is 7 cm The angle subtended by an arc of the circle at centre is 45 Find the area of a sector
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Answer 1

Answer:

18.5 square cm

Step-by-step explanation:

as the angle is 45

the areaof the sector will be,

= (area of circle)/8

= 77/4

=18.5

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Answer 2

Answer:

Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm . ("use " π" = " 22/7) Given = 22 cm r = 100 cm = ? We know that = r θ Putting value 22 = 100 × θ 22/100 = θ θ = 22/100 radians                                                                                                       Step-by-step explanation:

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