Mathematics

Question

Can I get some help in this question from geometry?




I will answer one of your questions!!! :)
Can I get some help in this question from geometry? I will answer one of your questions!!! :)

1 Answer

  • 1) We know, Circumference = 2πr
    If radius is tripled, then, C' = 2π(3r) = 6πr = 3 * 2πr = 3 * C

    So, Circumference will also get increased to it's triple value

    2) We know, Area = πr²
    If radius is doubled, π(2r)² = 4π²

    So, Area will increase 4 times to it's intial value

    Hope this helps!
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