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```        The diameters of two given circles are as
3 : 4, and the sum of the areas of the circles is equal to the area of a circle whose diameter measures 30 c. Find the diameters of the given circles.```
6 years ago

Raju Garg
29 Points
```										area of first circle = 22/7*(3x)2=22/7*9x2=198x2/7
area of second circle=22/7(4x)2=22/7*16x2=352x2/7
total area of circles = 198x2/7+352x2/7 = 550x2/7
area of third circle = 22/7*(30)2=22/7*900=19800/7
total area of circles = area of third circle
550x2/7 = 19800/7
550x2=19800
x2=19800/550=36
x = 6
diameter of circles = 6*3*,6*4*
=18,24

```
6 years ago
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