two circles are drawn inside a big circle of diameter 24 cm. diameter of two circles are 1/3 and 2/3 of the diameter of the big circle as shown in the adjoining figure.find the ratio of the areas of the shaded part to be unshaded part of the circle.
answer need in ratio
Attachments:
Answers
Answered by
3
Answer:
The answer is shaded: unshaded = 64 : 80
Step-by-step explanation:
given
diamenter of circle = 24cm
radius of circle = 12cm
diameter of small circle = (1/3)*24 = 8cm
radius of small circle = 4cm
diameter of large circle = (2/3)*24 = 16cm
radius of large circle = 8cm
area of unshaded part = (area of small circle + area of large circle)
area of unshaded part = (16π+64π)
area of unshaded part = 80π
area of shaded part = (area of circle - area of unshaded part)
area of shaded part = (144π - 80π)
area of shaded part = 64π
area of shaded part : area of unshaded part =
64π:80π = 64:80
Similar questions