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A circular sector has a radius of 12cm and a central angle of 1.5 radians. What is the arc length?

0 votes

A. 13.5

B. 12

C. 18

D. Not Here

its a multiple choice question.

asked Mar 4, 2014 in TRIGONOMETRY by futai Scholar

1 Answer

0 votes

Given circular sector radius(r) = 12cm.

Ѳ = 1.5 radians

Arc length(l) = (Ѳ/360)2∏r

2∏ radians= 360 degrees.

l = (Ѳ/2∏)2∏r

l = rѲ

l = 12*1.5

l = 18cm

Option C is correct choice.

answered Mar 4, 2014 by ashokavf Scholar

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