Question

1
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quadridelal is a usted polygon. (It should be named cyclically).
any quadrilateral ABCD, AB & DC and AD & BC are pairs of opposite
es. ZA & ZC and ZB & ZD are pairs of opposite angles. ZA is adjacent
B & ZD; similar relations exist for other three angles.
circle is the path of a point moving at the same distance from a fixed point.
le fixed point is the centre, the fixed distance is the radius and the distance
ound the circle is the circumference.
chord of a circle is a line segment joining any two points on the circle.
diameter is a chord passing through the centre of the circle.
sector is the region in the interior of a circle enclosed by an arc on one side
id a pair of radii on the other two sides.
segment of a circle is a region in the interior of the circle enclosed by an arc
id a chord.
ite, he diameter of a circle divides it into two semi-circles.
DOL​

Answer 1

Step-by-step explanation:

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