### Math 10 Chapter 5 - Part C 1. In a plane if a line is perpendicular to each of the two lines then lines are perpendicular a) True b) False 2. If two altitudes of a triangle are congruent then the triangle is isosceles. a) False b) True 3. The sum of all angles of quadrilateral is 180o a) True b) False 4. Diagonals of a parallelogram form two congruent triangles. a) False b) True 5. Every angle is congruent to itself such congruence is called an identity congruent a) False b) True 6. The area of a square region is 18m2 then the length of its diagonal is 6m. a) True b) False 7. In an isosceles triangle the bisector of vertex angle is the right bisector of the base. a) True b) False 8. The side opposite to the right angle is called its perpendicular. a) True b) False 9. The sum of measures of the three medians of a triangle is less than its perimeter. a) False b) True 10. In triangle the opposite angle of greater side is greater than the angle opposite to the smaller side. a) False b) True 11. `AB represents a) Plane AB b) Line AB c) Segment AB d) Ray AB 12. Two sides of a triangle are 10cm and 15cm then possible third side will be a) 30cm b) 25cm c) 20cm d) 5cm 13. Two intersecting lines cannot be parallel to the same line is called a) Axiom b) Play fair postulate c) Trapezium d) Vertical angle 14. If two lines intersect each other than the non-adjacent angles are called a) Vertical angles b) Corresponding angles c) Reflex angles d) Alternate angles 15. If two sides of triangle are equal we call it _______ triangle a) An isosceles b) A scalene c) Analogue d) A right 16. In an isosceles triangle the base angle is of measure 30o its vertex angle is a) Also of 30o b) 120o c) Less than 30o d) 150o 17. For two triangles to be similar if their corresponding a) None of the given b) Sum of angles should be equal c) Sides should be equal d) Angles should be equal 18. The side opposite to the right angle is called its ___________ a) None of the given b) Hypotenuse c) Perpendicular d) Base 19. The perpendicular is the _______ distance from the point to the line. a) Common b) Parallel c) Longest d) Shortest 20. If a line segment intersects the two sides of a triangle in the same ratio then it is _______ to the third side a) Parallel b) Greater c) Equal d) Perpendicular

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