In a circle of diameter 40 cm the length of the chord is 20 cm find the length of the minor arc of the chord
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Answer:
- in a circle we get triangle in which chord=radius=radius[all side equal then angles are also equal]
- one angle of equilateral triangle=180/3=60 degree
- in next step we will change it into radian by multiplying with pie/180degree
- length of arc=radius *theeta[ACCORDING TO FORMULA]
- in this formula theeta is in radian and we already calculated
- then put the value
60*pie*20/180
=20pie/3 [ANS]
Step-by-step explanation:
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