Find the radius of the circle whose area is equal to the sum of the area of three circle with radii 2, 5 6 cm
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Given :
- The circle whose area is equal to the sum of the area of three circle with radii 2, 5, 6 cm.
To find :
- Radius of the big circle.
Solution :
- Radii of 1st circle = 2 cm
- Radii of 2nd circle = 5 cm
- Radii of 3rd circle = 6 cm
Formula Used :-
★
★
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Sum of the area of 3 circles ,
= ( 4π + 25π + 36π) cm²
= 65π cm²
Consider,
- Radius of the big circle = R cm
Therefore, radius of the big circle is 8.06 cm ( approx) .
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