Question

give me definition of cords segment acute, angle obtuse angle right angle straight angle reflex angle parallel lines

Answer 1

hy
here is your answer
==================
☣chord☣

a line segment with its and points lying on a circle is called the chord of a circle.
----------------------------------
☣diameter☣

largest chord passing through the centre of the circle.
----------------------------------------
☣segment☣

a chord of a circle divides the circular region into two parts each part is called a line segment.
---------------------------------------------
☣acute angle☣

angle less than 90°
-----------------------------------------------
☣right angle☣

angle equal to90°
---------------------------------------------------
☣straight angle☣

angle equal to 180°
-------------------------------------------------------
☣reflex angle☣

angle greater than 180°and less than 360°
--------------------------------------------------------------
☣parallel line☣

a line which are never intersect and the distance between them remains every where in plane.
========================:-)

Answer 2

the line segment joining two point on the circle is called chord and the angle that measure less 60 degreeis called acute angle and the angle that measures less than 180degree is called obtuse angle and the angle that measures 180 degree is calleq straight angle and the angle that measures less than 360 degree is called reflex angle lastly the two line that are not joining each other is called parallel lines