Math, asked by aditi6198, 10 months ago

area of an Arc of a circle is 80°and its radius is 18 cm find the length of the arc if π = 3.14

Answers

Answered by ishitabhatia873

hope it will help you

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aditi6198: is it confirm

ishitabhatia873: yes

aditi6198: from where did you get the formula

ishitabhatia873: Its not given but i can explain you

aditi6198: plzz explain

ishitabhatia873: See perimeter of circle is 2pi×r when we are needed to find the length of an arc. we take theta/360×2pi×r

ishitabhatia873: so we get the formula pi×theta×r/180

Answered by somyamangla

area if arc = theta/360 . 2πr

$(80 \div 360) \times2 \times 3.14 \times 18$
= 25.12cm

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