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Johny8oy

  • 4 years ago

Express answers in simplest exact form. What is the radius of a circle with a sector area of 7PI sq. ft. and an arc whose measure is 70°? r = ? feet

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  1. 101Ryan101
    • 4 years ago
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    What is the formula for the area of a sector?

  2. TBates
    • 4 years ago
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    Sector = πr^2*degrees/360 7π = πr^2 (70/360 7 = r^2 (7/36) 36 = r^2 so r is either 6 ft or -6 ft

  3. 101Ryan101
    • 4 years ago
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    A negitive radius? That must be beyond the event horizon or something. :)

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