11
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 60o angle
is bisected twice then what will be measure of each angle that is constructed?
45o
30o
15o
5o
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 180o to the line
Perpendicular
to the line segment.
At
an angle of 45oto 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 90o 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 180o and less than 360o 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 180o 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
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