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
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hope it will help you
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aditi6198:
is it confirm
yes
from where did you get the formula
Its not given but i can explain you
plzz explain
See perimeter of circle is 2pi×r when we are needed to find the length of an arc. we take theta/360×2pi×r
so we get the formula pi×theta×r/180
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area if arc = theta/360 . 2πr
= 25.12cm
= 25.12cm
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