Question

Q. No. 5. Please give me the answer in step by step solution.

Answer 1

Answer:

Step-by-step explanation:

Since diameters ratio are given as 2:3 so the ratio of their respective radius will also be same as 2:3

Answer 2

Answer:

As radius is 1/2 diameter, the ratio of the radii of the two circles will also be 2:3.

Let the radii of two circles be 2x and 3x respectively.

Area of first circle:

Area of second circle:

Ratio of the area of both circles:

Hence ,the ratio of areas of two circular discs are 4:9.

Step-by-step explanation:

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