Advertisements
Advertisements
प्रश्न
The circumference of a circle is 22 cm. The area of its quadrant (in cm2) is
पर्याय
A.`77/2`
B.`77/4`
C.`77/8`
D.`77/16`
उत्तर
Let the radius of the circle be r cm.
Given: Circumference of circle = 22 cm
`therefore 2pir=22cm` `[therefore\text{Circumference of circle = 2pir}]`
`rArrr=22/(2pi)cm`
`rArrr=(22xx7)/(2xx22)cm`
`rArrr=7/2cm`
Area of quadrant of circle
`=1/4(\text{Area of circle})`
`=pi_4^1xxr^2`
`=1/4xx22/7xx7/2xx7/2cm^2`
`=77/2cm^2`
Hence, the correct answer is C.
APPEARS IN
संबंधित प्रश्न
In the given figure, PQ and RS are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersects PQ at A and RS at B. Prove that ∠AOB = 90º
A point P is 13 cm from the centre of the circle. The length of the tangent drawn from P to the circle is 12cm. Find the radius of the circle.
Write True or False. Give reasons for your answers.
A chord of a circle, which is twice as long as its radius, is a diameter of the circle.
If the tangent at point P to the circle with center O cuts a line through O at Q such that PQ= 24cm and OQ = 25 cm. Find the radius of circle
Draw different pairs of circles. How many points does each pair have in common? What is the maximum number of common points?
In the given figure, seg MN is a chord of a circle with centre O. MN = 25, L is a point on chord MN such that ML = 9 and d(O,L) = 5. Find the radius of the circle.
Use the figure given below to fill in the blank:
Tangent to a circle is _______.
In the following figure, tangents PQ and PR are drawn to a circle such that ∠RPQ = 30°. A chord RS is drawn parallel to the tangent PQ, then ∠RQS.
In the following figure, if ∠DAB = 60º, ∠ABD = 50º, then ∠ACB is equal to ______.
If ABC is an equilateral triangle inscribed in a circle and P be any point on the minor arc BC which does not coincide with B or C, prove that PA is angle bisector of ∠BPC.
