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anonymous

  • 5 years ago

ANY1 HELP ME PLEASE The ratio of the radii of two circles at the centers of which two arcs of the same length subtended a angles of 60 degree and 70 degree is

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  1. watchmath
    • 5 years ago
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    arc 1 =\(60/360\cdot 2\pi r_1\) arc 2 = \(70/360\cdot 2\pi r_2\) Since arc 1=arc 2 if we divide the first by the second we have \(1=6/7\cdot r_1/r_2\) So \(r_1/r_2=7/6\) where r1 is the outer radius and r2 is the inner radius

  2. anonymous
    • 5 years ago
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    YES BUT IT IS NOT THE OPTION SO I SHOULD THINK THAT THE QUESTION IS WRONG

  3. watchmath
    • 5 years ago
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    what are the options?

  4. anonymous
    • 5 years ago
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    A) 5:4 B) 4:5 C) 2:6 D) 4:3

  5. myininaya
    • 5 years ago
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    ok i don't mean to sound like a retard but can you tell me what subtended means

  6. anonymous
    • 5 years ago
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    extend opposite angle: to be opposite and delimit the extent of an angle or side of a geometric figure was not found in the English Dictionary .

  7. anonymous
    • 5 years ago
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    Subtended is a code word to let you know they are referring to a sector of a circle; they would usually say the subtended angle; referring to the sector bounded by radii, arc and subtended angle.

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