The eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape
Since the eccentricity of an ellipse
A circle is an ellipse when a=b
so eccentricity of circle
The distance between the centers of two circles C1 and C2 is equal to 10 cm. The circles have equal radii of 10 cm.
A part of circumference of a circle is called
The perimeter of a basketball court is 108 meters and the length is 6 meters longer than twice the width. What are the length and width?
What are the coordinates of the center and the length of the radius of the circle represented by the equation ?
Which of the following pairs of angles are supplementary?
What is the surface area to volume ratio of a sphere?
An angle which measures 89 degrees is a/an _____.
Herman drew a 4 sided figure which had only one pair of parallel sides. What could this figure be?
Which quadrilateral has: All sides equal, and opposite angles equal?
Karen says every equilateral triangle is acute. Is this true?
Find the number of lines of symmetry of a circle.
The endpoints of a diameter of a circle are located at (5,9) and (11, 17). What is the equation of the circle?
What is the number of lines of symmetry in a scalene triangle?
How many diagonals does a rectangle has?
A quadrilateral whose diagonals are unequal, perpendicular and bisect each other is called a.