ons
24. The diameter of a circle is increased by 15%
the increase in the area of the circle is​

ons
24. The diameter of a circle is increased by 15%
the increase in the area of the circle is​

About the author
Hailey

1 thought on “ons<br />24. The diameter of a circle is increased by 15%<br />the increase in the area of the circle is​”

  1. Step-by-step explanation:

    original circle:

    diameter= d

    area of original circle= π d^2 / 4

    diameter is 15% increased new circle formed

    diameter of new circle=d(115) /100

    = 23d/20

    area of new circle= π (23d/20)^2 / 4

    increase in area = new area-old area

    = π (23d/20)^2 / 4 – π (d)^2 / 4

    = πd^/4(23^2-20^2)/20^2

    = πd^/4(23^2-20^2)/20^2

    =πd^/(129)/1600

    = 129 πd^/1600

    the increase in the area of the circle is 129 πd^/1600

    Reply

Leave a Comment