Question 2 :
What is the volume in cubic cm of a pyramid whose area of the base is $25 \,sq\,cm$ height $9cm$?
Question 4 :
If a diameter is drawn it divides the circle into____equal parts
Question 5 :
The ratio of the radii of two hual-hoops is $3 : 4$. What is the ratio of their circumferences?
Question 6 :
The sum of the areas of two circle $A$ and $B$ is equal to the area of a third circle $C$, whose diameter is $30$ cm. If the diameter of circle $A$ is $18$ cm, then the radius of circle B is 
Question 7 :
One angle of a cyclic trapezium is double the other. What is the measure of the larger angle?
Question 8 :
The tangent to a circle is a special case of the secant is 
Question 9 :
State true or false:<br/>Line segment joining the centre to any point on the circle is a radius of the circle.
Question 10 :
If a chord of length $2\sqrt { 2 }$ subtends a right angle at the centre of the circle, then its radius is
Question 12 :
The area of a circle is doubled when its radius $r$ is increased by $n$. Then $r$ equals:
Question 13 :
A wire is in the form of a circle of radius-28 cm, then the side of the square into which it can be bent is<br>
Question 14 :
Find the circumference of the circles with the radius 7cm :(Take $\pi =\dfrac{22}{7}$) 
Question 15 :
If a line intersects a circle in two distinct points then it is known as a
Question 16 :
If the diameter of a circle decreases to its $\dfrac{1}{4}$ then its radius decreases to
Question 18 :
If $(3, -2)$ is on a circle with center $(-1, 1)$ then the area of the circle is
Question 21 :
$BD$ is a chord parallel to the diameter $AC$ of a circle. A point $B$ is on the perimeter of the circle such that angle $CBE={ 63 }^{ o }$. The angle $DCE$ is equal to
Question 22 :
Write true or false :<br/>A chord of a circle, which is twice as long as its radius, is a diameter of the circle.
Question 23 :
ACB is tangent to a circle at C. CD and CE are chords such that $\angle ACE > \angleACD$. If $\angle ACD = \angle BCE = 50^{\circ}$, then which is correct answer?
Question 24 :
Two chords of lengths 16 cm and 17 cm are drawn perpendicular to each other in circle of radius 10 cm. The distance of their point of intersection from the centre is approximately
Question 26 :
The center of a circle represented by the equation$\displaystyle \left ( x-2 \right )^{2}+\left ( y+3 \right )^{2}=100$ is located in Quadrant _____
Question 27 :
Of all the chords of a circle passing through a given point in it, the smallest is that which<br>
Question 28 :
Chords AC and BD of a circle intersect each other then the figure ABCD formed will be
Question 30 :
Line segment joining the centre to any point on the circle is 
Question 32 :
A circle is inscribed in a triangle with sides $8,15 and 17$. The radius of the circle is.
Question 33 :
$AB$ is a chord of the circle with center $O$ and radius $r$, $OD\pm AB$ meeting $AB$ at $ D$. If $AB =8$ cm and $OD =3$ cm, then $r$ equals
Question 34 :
The _________ of a circle is the distance from the centre to the circumference.
Question 35 :
If the line $hx + ky = 1$ touches $x^2 + y^2 = a^2$, then the locus of the point (h, k) is a circle of radius
Question 36 :
What are the coordinates of the center of the circle represented by the equation$\displaystyle \left ( x+3 \right )^{2}+\left ( y-4 \right )^{2}=25$?
Question 37 :
If a circle passing through the point $( - 1,0 )$ touches $y$-axis at $( 0,2 )$ then the length of the chord of the circle along the $x$ -axis is :
Question 39 :
In a circle with centre O, $OD\bot$chord AB. If BC is the diameter, then
Question 40 :
What is the radius of a circular field whose area is equal to the sum of the areas of three smaller circular fields of radii $12m, 9m$ and $8m$ respectively?
Question 42 :
$\Box ABCD$ is a Rhombus. If it is inscribed in $\odot \left( 0,r \right) $, then $\Box ABCD$ is a ..............
Question 43 :
What is the radius of the circle with the given diameter $42$ cm?
Question 44 :
What are the coordinates of the center of this circle?<br>$\displaystyle x^{2}+\left ( y+7 \right )^{2}=11$<br>
Question 45 :
The length of the diameter of a circle is how many times the radius of the circle 
Question 47 :
At the centre of circle, opposite sides of a quadrilateral circumscribing a subtend 
Question 48 :
A chord of a circle, which is twice as long as its radius, is a diameter of the circle.
Question 49 :
If the number of units in the circumference of a circle is same as the number of units in the area,then the radius of the circle will be<br>
Question 50 :
In a circle of diameter 10 cm, the length of each of 2 equal and parallel chords is 8 cm, then the distance between these two chords is
