Advertisements
Advertisements
प्रश्न
Ratio of the circumference of a circle to its diameter is denoted by symbol ______.
Advertisements
उत्तर
Ratio of the circumference of a circle to its diameter is denoted by symbol π.
Explanation:
∵ Circumference = 2 πr
⇒ C = πd ...[∵ d = 2r]
⇒ `C/d = π`
⇒ π = C : d
Hence, π is the answer.
APPEARS IN
संबंधित प्रश्न
In figure, ΔABC is an isosceles triangle with perimeter 44 cm. The base BC is of length 12 cm. Side AB and side AC are congruent. A circle touches the three sides as shown in the figure below. Find the length of the tangent segment from A to the circle.

A playground has the shape of rectangle, with two semicircles on its smaller sides as diameters, added to its outside. If the sides of rectangle are 36m and 24.5m. find the area of playground.
The wheel of a motor cycle is of radius 35 cm. How many revolutions per minute must the wheel make so as to keep a speed of 66 km/hr ?
The area of a circle inscribed in an equilateral triangle is 154 cm2. Find the perimeter of the triangle.
The area of an equilateral triangle is `49sqrt(3)` cm2 . Taking each angular point as centre, circles are drawn with radius equal to half the length of the side of the triangle. Find the area of the triangle not included in the circles. [Take π = 1.73]
Find the area and perimeter of the circle with the following :
Radius= 2.8 cm
Find the curved surface area , the total surface area and the volume of a cone if its :
Height = 16 cm , diameter = 24 cm
The diameter of a cycle wheel is `4 5/11` cm. How many revolution will it make in moving 6.3 km ?
The diameter of a right circular cylinder is 12 m and the slant height is 10 m. Find its curved surface area and the total surface area .
Sum of the areas of two squares is 157 m2. If the sum of their perimeters is 68 m, find the sides of the two squares.
