Advertisements
Advertisements
प्रश्न
Ratio of circumference of a circle to its radius is always 2π : 1.
पर्याय
True
False
Advertisements
उत्तर
This statement is True.
Explanation:
∵ Circumference : Radius = 2πr : r = 2π : 1
APPEARS IN
संबंधित प्रश्न
If the perimeter of a semi-circular protractor is 66 cm, find the diameter of the protractor (Take π = 22/7).
The area of a minor sector of a circle is 3.85 cm2 and the measure of its central angle is 36°. Find the radius of the circle.
Find the perimeter of a semicircular protractor whose diameter is 14 cm.
The circumference of a circle exceeds its diameter by 45 cm. Find the circumference of the circle.
The side of a square is 10 cm. Find the area of the circumscribed circle. [π = 3.14]
Find the curved surface area , the total surface area and the volume of a cone if its :
Height = 16 cm , diameter = 24 cm
The shaded portion of the figure, given alongside, shows two concentric circles. If the circumference of the two circles is 396 cm and 374 cm, find the area of the shaded portion.
A bucket is raised from a well by means of a rope which is wound round a wheel of diameter 77 cm. Given that the ascends in 1 minute 28 seconds with a uniform speed of 1.1 m/sec, calculate the number of complete revolutions the wheel makes in raising the bucket. (Take π =22/7)
Find the area of the shaded region given in figure
The circumferences of two circles are in the ratio 4 : 5. What is the ratio of their radii?
