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Grade IX Maths Quiz on TRIANGLES

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

f E and F are the midpoints of equal sides AB and AC of a triangle ABC. Then:

a)

BF = AC

b)

BF =AF

c)

CE= AB

d)

BF = CE

2.

In two triangles, ABC and PQR, ∠A = 30°, ∠B = 70°, ∠P = 70°, ∠Q = 80° and AB = RP, then which of the following is correct

a)

ΔABC ≌ ΔPQR by SAS

b)

ΔABC ≌ ΔQRP By RHS

c)

ΔABC ≌ ΔRPQ by ASA

d)

ΔABC ≌ ΔRQP by SSS

3.

If ABC and DBC are two isosceles triangles on the same base BC. Then:

a)

∠ ABD = ∠ ACD

b)

∠ABD > ∠ACD

c)

∠ABD < ∠ACD

d)

None of the above

4.

If AD is an altitude of an isosceles triangle ABC in which AB = AC. Then we get

a)

BD>CD

b)

BD<CD

c)

BD=CD

d)

None of the above

5.

In the given figure, the congruency rule used in proving ∠ACD ≌ ∠ADB is

a)

ASA

b)

SAS

c)

AAS

d)

RHS

6.

In the given figure, AD is the median then ∠BAD is

a)

35°

b)

70°

c)

110°

d)

55°

7.

In a right triangle, the longest side is:

a)

perpendicular

b)

Hypotenuse

c)

Base

d)

None of these

8.

Two sides of a triangle are of length 5 cm and 1.5 cm. The length of the third side of the triangle cannot be:

a)

3.6 cm

b)

4.1 cm

c)

3.8 cm

d)

6.9 cm

9.

In the given figure, if the exterior angle is 135 then ∠P is:

a)

45 degree

b)

60 degree

c)

80 degree

d)

90 degree

10.

In triangles ABC and PQR, AB = AC, ∠C = ∠P and ∠B = ∠Q. Th two triangles are:

a)

Isosceles but not congruent

b)

Isosceles and congruent

c)

Congruent but not isosceles

d)

Neither congruent nor isosceles

11.

Two circles are congruent if they have same

a)

chord

b)

radius

c)

arc

d)

none of these

12.

The measurement of each acute angle of a right angled isosceles triangle is

a)

900

b)

600

c)

450

d)

none of these

13.

The point of concurrence of the medians of a triangle is called as

a)

orthocentre

b)

circumcentre

c)

incentre

d)

centroid

14.

The orthocentre of an equilateral triangle divides each median in the ratio

a)

1:2

b)

1:3

c)

2:3

d)

none of these

15.

Sum of the exterior angles of a triangle measures

a)

1200

b)

1800

c)

3600

d)

7200