Advertisements
Advertisements
प्रश्न
If the circumference of a circle is 176 cm, find its radius.
Advertisements
उत्तर
Circumference = 176 cm
Circumference = 2πr ... (where 'r' is the radius of circle)
176 = `2xx22/7xx"r"`
176 × 7 = 2 × 22 × r
1232 = 44r
`1232/44` = r
r = 28
∴ The radius of the circle = 28 cm
संबंधित प्रश्न
A bicycle whell makes 5000 revolutions in moving 11 km. Find the diameter of the wheel
The circumferences of two circles are in the ratio 2 : 3. What is the ratio between their areas?
The area of a circle is 49π cm2. Its circumference is ______.
In making 1000 revolutions, a wheel covers 88 km. The diameter of the wheel is ______.
A circular racing track has inner circumference 528 m and outer circumference 616 m. Find the width of the track.
The radius of a circular garden is 56 m. What would it cost to put a 4-round fence around this garden at a rate of 40 rupees per metre?
A wire in the form of a circle of radius 42cm. It is bent into a square. Determine the side of the square and compare the area of the regions enclosed in the two cases.
What is the circumference of a circle of diameter 10 cm (Take π = 3.14)?
A wire of length 1320 cm is made into circular frames of radius 7 cm each. How many frames can be made?
A photograph of Billiard/Snooker table has dimensions as `1/10`th of its actual size as shown in the following figure:
The portion excluding six holes each of diameter 0.5 cm needs to be polished at rate of ₹ 200 per m2. Find the cost of polishing.
