makaioambrose
makaioambrose
12-04-2017
Mathematics
contestada
Geometry please help
Respuesta :
Sxerks
Sxerks
12-04-2017
Diameter is 178 cm, so the radius is 89 cm.
Distance from chord to centre is 39 cm, and the line from the centre bisects the chord.
Hence, the chord from the end of the circle to the centre of the chord is:
√(89² - 39²) = 80
Thus, the chord length is 160 cm (ie B)
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