EduSahara™ Worksheet

Question 1

1.

Identify the figure below

(i)

triangle
(ii)

angle
(iii)

decagon
(iv)

nonagon
(v)

octagon

Question 2

2.

The side opposite to the vertex
D

(i)

FD
(ii)

GE
(iii)

EF
(iv)

DH
(v)

DE

Question 3

3.

The side opposite to the vertex
Q

(i)

PT
(ii)

SQ
(iii)

RP
(iv)

QR
(v)

PQ

Question 4

4.

The side opposite to the vertex
R

(i)

PT
(ii)

SQ
(iii)

PQ
(iv)

RP
(v)

QR

Question 5

5.

The vertex opposite to the side
OP

(i)

N
(ii)

PQ
(iii)

R
(iv)

O

Question 6

6.

The vertex opposite to the side
TR

(i)

S
(ii)

R
(iii)

V
(iv)

TU

Question 7

7.

The vertex opposite to the side
KL

(i)

MN
(ii)

L
(iii)

K
(iv)

M

Question 8

8.

The altitude corresponding to the side
BC

(i)

BE
(ii)

AB
(iii)

CF
(iv)

AE
(v)

AD

Question 9

9.

The altitude corresponding to the side
RP

(i)

PQ
(ii)

QT
(iii)

PT
(iv)

PS
(v)

RU

Question 10

10.

The altitude corresponding to the side
CD

(i)

EH
(ii)

CD
(iii)

CF
(iv)

CG
(v)

DG

Question 11

11.

The median corresponding to the side
EF

(i)

DE
(ii)

DH
(iii)

FI
(iv)

DG
(v)

EH

Question 12

12.

The median corresponding to the side
PN

(i)

NQ
(ii)

NR
(iii)

OR
(iv)

PS
(v)

NO

Question 13

13.

The median corresponding to the side
NO

(i)

NR
(ii)

PS
(iii)

NO
(iv)

NQ
(v)

OR

Question 14

14.

The sides of the triangle are

(i)

IJ

,

JH

,

HI
(ii)

GH

,

HF

,

FG
(iii)

HJ

,

JG

,

GH
(iv)

GI

,

IF

,

FG
(v)

HI

,

IG

,

GH

Question 15

15.

The name of the triangle is

(i)

△IJL
(ii)

△JKM
(iii)

△JKL
(iv)

△KLM
(v)

△IJK

Question 16

16.

The angles of the triangle are

(i)

∠G , ∠H , ∠J
(ii)

∠H , ∠I , ∠J
(iii)

∠F , ∠G , ∠H
(iv)

∠G , ∠H , ∠I
(v)

∠F , ∠G , ∠I

Question 17

17.

The vertices of the triangle are

(i)

L , M , N
(ii)

L , M , O
(iii)

K , L , M
(iv)

M , N , O
(v)

K , L , N

Question 18

18.

The exterior angles of the triangle are

(i)

∠KLI , ∠LIJ , ∠MJL
(ii)

∠LKI , ∠MIJ , ∠NJK
(iii)

∠MLJ , ∠NJK , ∠OKL
(iv)

∠JKH , ∠KHI , ∠LIK
(v)

∠KJH , ∠LHI , ∠MIJ

Question 19

19.

The point of intersection of the altitudes of a triangle is called

(i)

circumcentre
(ii)

altitude
(iii)

orthocentre
(iv)

excentre
(v)

centroid

Question 20

20.

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

(i)

circumcentre
(ii)

incentre
(iii)

orthocentre
(iv)

excentre
(v)

centroid

Question 21

21.

The point of intersection of the bisectors of the interior angles of a triangle is called

(i)

centroid
(ii)

incentre
(iii)

orthocentre
(iv)

excentre
(v)

median

Question 22

22.

The point of intersection of the bisectors of the interior angle and the two exterior opposite angles of a triangle is called

(i)

incentre
(ii)

altitude
(iii)

excentre
(iv)

median
(v)

orthocentre

Question 23

23.

The point of intersection of the medians of a triangle is called

(i)

orthocentre
(ii)

centroid
(iii)

incentre
(iv)

altitude
(v)

excentre

Question 24

24.

The line joining each vertex to the mid-point of the opposite side of a triangle is called

(i)

median
(ii)

centroid
(iii)

altitude
(iv)

circumcentre
(v)

excentre

Question 25

25.

The perpendicular drawn from each vertex to the opposite side of a triangle is called

(i)

centroid
(ii)

orthocentre
(iii)

excentre
(iv)

altitude
(v)

circumcentre

Question 26

26.

Which of the following may lie outside or on the triangle?

a)	circumcentre
b)	incentre
c)	orthocentre
d)	centroid
e)	excentre

(i)

{b,a}
(ii)

{a,c,e}
(iii)

{d,c}
(iv)

{b,d,e}
(v)

{b,a,c}

Question 27

27.

Sum of the interior angles in a triangle is

(i)

190°
(ii)

210°
(iii)

195°
(iv)

185°
(v)

180°

Question 28

28.

How many diagonals does a triangle have?

(i)

3
(ii)

2
(iii)

1
(iv)

4
(v)

0

Question 29

29.

Identify the points that are on the triangle

(i)

{E,H,K}
(ii)

{C,F,I}
(iii)

{F,I,K}
(iv)

{D,I,C}
(v)

{D,G,J}

Question 30

30.

Identify the points that are inside the triangle

(i)

{N,Q}
(ii)

{M,N}
(iii)

{O,R}
(iv)

{M,P}
(v)

{R,Q}

Question 31

31.

Identify the points that are outside the triangle

(i)

{L,O,R}
(ii)

{M,L,P}
(iii)

{Q,S,M}
(iv)

{K,N,Q}
(v)

{M,P,S}

Question 32

32.

Consider the following figure. State which of the following statements are true

a)

LM
≠
MN

b)

NL
=
LM

c)

MN
≠
NL

d)

NL
≠
LM

e)

LM
=
MN

f)

MN
=
NL

(i)

{b,e,f}
(ii)

{c,b,e}
(iii)

{c,e}
(iv)

{d,a,f}
(v)

{a,b}

Question 33

33.

Consider the following figure. State which of the following statements are true

a)

KI
=
IJ

b)

JK
=
KI

c)

JK
≠
KI

d)

IJ
=
JK

e)

KI
≠
IJ

f)

IJ
≠
JK

(i)

{d,c}
(ii)

{a,c,f}
(iii)

{d,a,c}
(iv)

{e,b,f}
(v)

{b,a}

Question 34

34.

Consider the following figure. State which of the following statements are true

a)

MN
=
NO

b)

NO
≠
OM

c)

MN
≠
NO

d)

OM
=
MN

e)

NO
=
OM

f)

OM
≠
MN

(i)

{a,b}
(ii)

{e,a,f}
(iii)

{b,c,f}
(iv)

{d,b,c}
(v)

{d,c}

Question 35

35.

Consider the following figure. State which of the following statements are true

a)	∠M ≠ ∠K
b)	∠L ≠ ∠M
c)	∠M = ∠K
d)	∠L = ∠M
e)	∠K = ∠L
f)	∠K ≠ ∠L

(i)

{b,c,d}
(ii)

{f,a,e}
(iii)

{c,d,e}
(iv)

{a,c}
(v)

{b,d}

Question 36

36.

Consider the following figure. State which of the following statements are true

a)	∠H = ∠I
b)	∠I ≠ ∠J
c)	∠H ≠ ∠I
d)	∠I = ∠J
e)	∠J = ∠H
f)	∠J ≠ ∠H

(i)

{b,d}
(ii)

{b,c,d}
(iii)

{c,d,f}
(iv)

{a,c}
(v)

{e,a,f}

Question 37

37.

Consider the following figure. State which of the following statements are true

a)	∠K ≠ ∠I
b)	∠K = ∠I
c)	∠I = ∠J
d)	∠I ≠ ∠J
e)	∠J ≠ ∠K
f)	∠J = ∠K

(i)

{a,d,e}
(ii)

{c,a,d}
(iii)

{b,a}
(iv)

{c,d}
(v)

{f,b,e}

Assignment Key