**Q1. Which of the following could possibly be not the sides of a triangle**

- 3 cm, 7 cm, 5 cm
- 2 cm, 3 cm, 7 cm
- 6 cm, 9cm, 5 cm
- 4 cm, 5 cm, 6 cm

**Q2. The point of intersection of the perpendicular bisectors of the sides of a triangle is called**

- Centroid
- Orthocentre
- Incentre
- Circumcentre

**Q3. If 60 ^{o} angle is bisected twice then what will be measure of each angle that is constructed?**

- 45
^{o} - 30
^{o} - 15
^{o} - 5
^{o}

**Q4. Choose the correct statement**

- If two sides of a triangle are unequal then the larger side has the smaller angle opposite to it.
- The sum of the three sides of a triangle is less than the sum of its three medians.
- The difference of two sides of a triangle is equal to the third side.
- Of all the line segments that can be drawn from a point outside a line, the perpendicular is the shortest.

**Q5. The bisector of an angle lies in its**

- Interior
- Exterior
- On the arms of the angle
- Any where in the plane

**Q6. The point of concurrence of the three angle bisectors of a triangle, is called**

- Centroid
- Circumcentre
- Incentre
- Orthocentre

**Q7. The bisector of any angle forms two**

- Adjacent angles
- Vertically opposite angles
- Supplementary angles
- Obtuse angles.

**Q8. The lengths of the sides of some triangles are given, which of them is not a right angled triangle?**

- 7 cm, 24 cm, 25 cm
- 3.5 cm, 3 cm, 1.2 cm
- 5 cm, 12 cm, 13 cm
- 5 cm, 8 cm, 10 cm

**Q9. Bisector of an angle divides the angle into**

- Four parts
- Three parts
- Two parts
- Two equal parts

**Q10. The bisector of a line segment is**

- Parallel to the line segment.
- At an angle of 180
^{o}to the line - Perpendicular to the line segment.
- At an angle of 45
^{o}to the line

**Q11. In triangle ABC, altitude BE = altitude CF. Then triangle ABC is**

- Equilateral triangle
- Right angled triangle
- Isosceles triangle
- Scalene triangle

**Q12. To construct a right triangle whose base is 12 cm and sum of its hypotenuse and other side is 18 cm. We draw line segment AB of 12 cm. Draw a ray AX making 90 ^{o} with AB. The next step is:**

- Cut a line segment AD of 18 cm on AX
- Cut a line segment BD of 18 cm
- Cut a line segment AD of 18 cm on AB
- Cut a line segment BD of 18 cm on AB

**Q13. Which of these triangles are possible to construct by knowing only its altitude?**

- Isosceles triangle
- Equilateral triangle
- Right angled triangle
- Any triangle

**Q14. A line segment drawn perpendicular from the vertex of a triangle to the opposite side is called the**

- Median
- Altitude
- Bisector
- Perpendicular

**Q15. A line segment has**

- No end points
- Two end points
- One end point.
- Four end points

**Q16. An angle whose measure is more than 180 ^{o} and less than 360^{o} is called a**

- Reflex angle
- Acute angle
- Straight angle
- Complete angle

**Q17. A line segment joining the vertex of a triangle to the mid point of the opposite side is called the**

- Median
- Altitude
- Bisector
- Perpendicular

**Q18. The centre of a circle can be located by drawing the …of its two non-parallel chords.**

- Radius
- Diameter
- Perpendicular bisectors
- Circumference

**Q19. An angle whose measure is equal to 180 ^{o} is called a**

- Straight angle
- Right angle
- Complete angle
- Acute angle

**Q20. The internal and external bisectors of an angle form a**

- Reflex angle
- Acute angle
- Right angle
- Straight angle