### Math 10 Chapter 7 - Part A 1. Pyramid in Egypt and Taj Mahal are the beautiful examples of application of ____________. a) Applied Geometry b) Simple Geometry c) General Geometry d) Practical Geometry 2. A circle passing through three ___________ of triangle is called circum circle. a) Vertices b) Inscribeds c) Vertexes d) In-circles 3. A circle touching the three _________ of a triangle is called in-circle. a) Lines b) Points c) Corners d) Sides 4. Perpendicular distance between in-centre and any side of a triangle is called _______. a) Perpendicular b) True length c) In-circle d) In-radius 5. Point of intersection of bisectors of interior angles of triangle is called ________. a) In-centre b) True length c) In-circle d) Vertex 6. ___________of side of a triangle not only cuts it into two equal halves but also is perpendicular to it a) Circum Centre b) Right Bisector c) Vertex d) In-centre 7. Point of intersection of right bisectors of sides of a triangle is called __________. a) In-centre b) Concurrent Centre c) Circum Centre d) Circum Centre 8. _______________ escribed circles can be drawn for a triangle. a) Four b) Three c) Any number of d) Two 9. The bisectors of one interior angle and two opposite exterior angles are _________. a) Parallel b) Concurrent c) Corners d) Perpendicular 10. A tangent is ___________which touches a circle only at a single point. a) Half circle b) A semi-circle c) An Arc d) A Line 11. __________ is always perpendicular to the radius of circle. a) An Arc b) A point c) A Tangent 12. If common tangent to the two circles is on the ___________ of the line joining their centres, then it is called direct common tangent. a) Opposite Side b) Same side c) Parallel Side 13. Median is a line segment joining one __________ of a triangle to the mid point of opposite sides a) Line b) Angle c) point d) Vertex 14. If the points of contact of the common tangents of two circles lies on __________ of the line joining the centres of circles then tangents are called transverse common tangents. a) Same side b) Parallel Side c) Opposite Side 15. ____________ tangents can be drawn to a circle from a point outside of a circle. a) Four b) One c) Two d) Three 16. Radius of a circle is 4cm. A point is taken at a distance of 5cm from centre of circle and tangent is drawn from it. Calculate length of tangent segment. a) 3cm b) 5cm c) 2cm d) 4cm 17. Calculate radius of a circle if tangent is drawn from a point at a distance of 10 cm from centre of circle and length of tangent segment is 8cm. (point is outside of circle). a) 3cm b) 9cm c) 6cm d) 8cm 18. The medians of a triangle are ____________. a) Concurrent b) Parallel c) Congruent d) Perpendicular 19. Calculate distance of a point from centre outside the circle from where tangents are drawn, if radius is 5cm, length of tangent segment is 8cm. a) Ö89 b) Ö79 c) Ö70 d) Ö99 20. Altitudes of a triangle are ____________. a) Congruent b) Concurrent c) Perpendicular d) Parallel

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