the diameter of two silver discs are in the ratio 2: 3 what will be the ratio of their areas
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Answered by
15
RADIUS = 2: 3
AREA OF CIRCLE
πr2 /πr2 = π × 2 × 2 / π × 3 × 3
= 4 / 9
AREAS OF THE CIRCLES = 4: 9
AREA OF CIRCLE
πr2 /πr2 = π × 2 × 2 / π × 3 × 3
= 4 / 9
AREAS OF THE CIRCLES = 4: 9
Answered by
0
Answer:
Explanation:
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.
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