Advertisements
Advertisements
Question
Circumferences of two circles are equal. Is it necessary that their areas be equal? Why?
Solution
If circumference of two circles are equal, then their corresponding radii are equal. So, their areas will be equal.
APPEARS IN
RELATED QUESTIONS
In the given figure, O is the centre of the circle with AC = 24 cm, AB = 7 cm and ∠BOD = 90°. Find the area of the shaded region.
The circumference of a circle is 8 cm. Find the area of the sector whose central angle is 72°.
Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular cardboard of dimensions 14 cm ⨯ 7 cm. Find the area of the remaining cardboard.
A square ABCD is inscribed in a circle of radius r. Find the area of the square.
Find the area of a circular field that has a circumference of 396 m.
Find the diameter of the sphere for the following :
Surface Area = `576pi`cm2
The diameter of two circles are 28 cm and 24 cm. Find the circumference of the circle having its area equal to sum of the areas of the two circles.
The numerical value of the area of a circle is greater than the numerical value of its circumference. Is this statement true? Why?
Area of circular garden with diameter 8 m is ______.
The area of a square is 100 cm2. The circumference (in cm) of the largest circle cut of it is ______.