A sector is cut from a circle of radius 42 cm. The angle of the sector is 1200. Find the length of its are and area.
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Answered by
5
length of arc= 120/360*22/7*2*42
= 1/3*44*42/7
=1/3*44*6
= 44*2
=88 cm
area of sector= length of arc*radius/2
=88*42/2
= 88*21
=1848 cm2
= 1/3*44*42/7
=1/3*44*6
= 44*2
=88 cm
area of sector= length of arc*radius/2
=88*42/2
= 88*21
=1848 cm2
Answered by
5
Angle of the sector = 120°
Radius of the sector = 42 cm
Length of the arc of the sector =
=
= 88 cm
Area of the sector =
=
= 1848 sq cm
Radius of the sector = 42 cm
Length of the arc of the sector =
=
= 88 cm
Area of the sector =
=
= 1848 sq cm
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