### Math 10 Chapter 6 - Part A

 1. The set of all points of a plane, which are equidistant from a fixed point is called a _________.a) Chord b) Circlec) Straight Lined) Triangle
 4. Central angle is an angle subtended by an arc at the __________ of the circle.a) Centreb) Diameterc) Circumfrence
 5. The measure of an angle inscribed in a semi-circle is equal to ________.a) 90o b) 270oc) 45od) 180o
 6. A chord through the centre of the circle is called __________.a) Diameter b) Central chordc) Diameter or Central chordd) Insentric
 7. Two circles are congruent if their __________ are congruent.a) Tangentsb) Concentricsc) Radius
 8. Circles which has only one point in common are called __________.a) Concentric circles b) Escribed circlesc) In-circlesd) Tangent circles
 9. The centres of two tangent circles and their common point always lie on the same _____.a) Straight line b) Inclined linec) Perpendicular lined) Parallel line
 10. Circles having a common centre are called ____________.a) Escribed circles b) In-circlesc) Concentric circlesd) Inscribed circles
 11. Circumcentre is the point of intersection of ___________ sides of the triangle.a) Right Bisectors b) Bisectorsc) Parallel Bisectorsd) Acute Bisectors
 12. The circle inscribed within a triangle so as to touch each of its sides is called the _______.a) Escribed circle b) In-circlec) Escribed circled) Inscribed circle or in-circle
 13. The circle which touches one side externally and the other two produced sides of a triangle internally is called ___________.a) c. Answers b and d are correct b) d. Circlec) b. Escribed circled) a. in-circle