An arc of a circle of length 13cm subtends an angle of 1.62 radians. What is the radius of the circle?
回答 (2)
2016-05-01 7:57 am
13=1.62*radius
radius=8.02cm
radius=8.02cm
2016-05-01 9:54 am
13 = [ 2π r / 1•62 ]
1•62 x 13 / [ 2π ] = r
r = 3•35 cm
1•62 x 13 / [ 2π ] = r
r = 3•35 cm
收錄日期: 2021-04-25 13:13:28
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