Naztaz
Naztaz Naztaz
  • 25-08-2019
  • Mathematics
contestada


The circumference of circle C is 90 cm. What is the length of AB (in red)?
Help please

The circumference of circle C is 90 cm What is the length of AB in red Help please class=

Respuesta :

ktrav258
ktrav258 ktrav258
  • 25-08-2019

Answer:

30cm

Step-by-step explanation:

a circle is 360 degrees

120/360 = 1/3 the circumference

90 cm * 1/3 = 90 / 3 = 30

Answer Link
jimrgrant1 jimrgrant1
  • 25-08-2019

Answer:

30 cm

Step-by-step explanation:

The length of the arc AB is calculated as

circumference × fraction of circle subtended by AB, that is

AB = 90 × [tex]\frac{120}{360}[/tex]

     = 90 × [tex]\frac{1}{3}[/tex] = 30 cm

Answer Link

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