Question

The diameters of two circles with centre A and B are 16cm and 30cm respestively.If areas of a circle with centre C is equal to sum of areas of the other two circles,then the circumference of the circle with centre C is:

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Diameter of circle with centre A = 16cm

Radius(r) of circle with centre A = 8cm

Diameter of circle with centre B= 30cm

Radius(R) of circle with centre B = 15cm

Given that:

Area of Circle with centre C = Area of circle with centre ( A + B)

= πr² + πR²

= π {(8)² + (15)²}

= π { 64 + 225}

= 289π

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