Advertisements
Advertisements
Question
Ratio of the circumference of a circle to its diameter is denoted by symbol ______.
Advertisements
Solution
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
RELATED QUESTIONS
Find the area of the sector of a circle whose radius is 14 cm and angle of sector is 45º
A gardener wants to fence a circular garden of diameter 21 m. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence. Also find the costs of the rope, if it cost ₹ 4 per meter. (Take `pi = 22/7`)
Find the angle subtended at the centre of circle of radius 5cm by an arc of length `((5pi)/3)` cm
What is the perimeter of a square which circumscribes a circle of radius a cm?
A sector of 56°, cut out from a circle, contains 17.6 cm2. Find the radius of the circle.
A copper wire when bent in the form of a square encloses an area of 484 cm2. The same wire is not bent in the form of a circle. Find the area enclosed by the circle.
The length of a chain used as the boundary of a semicircular park is 108 m. Find the area of the park.
The sum of the circumference and diameter of a circle is 116 cm. Find its radius.
Circumference of a circle disc is 88 cm. Its radius is ______.
A circle with radius 16 cm is cut into four equal parts and rearranged to form another shape as shown in the following figure:

Does the perimeter change? If it does change, by how much does it increase or decrease?
