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A sector is cut from a …

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A sector is cut from a circle of radius 21 cm. The angle of a sector is 150. Find the length of the arc and area of the sector.

Posted by Abhishek Kumar 7 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Dhirendra Behera 7 years, 1 month ago

Length of the sector will be 55cm. Area of the sector will be 577.5cm square.

1Thank You

Gaurav Seth 7 years, 1 month ago

Here, we have
r = 21 cm and ө = 120°
Let OACBO is the given sector and is the given length of arc, then

(i) The length of the arc (ACB)

(ii) Area of sector (OACBO)

4Thank You

Krishna Goyal 7 years, 1 month ago

Area of sector =577.5

2Thank You

Krishna Goyal 7 years, 1 month ago

Length of sector =55.00004

2Thank You

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