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Worksheets

Triangles and its Properties

Total questions: 19

Worksheet time: 9mins

Name
Class
Date
1.

If two sides of a triangle are equal, the triangle is called ?

a)

isosceles

b)

equilateral

c)

scalene

d)

right-angled

2.

If all the three sides of a triangle are equal, the triangle is called ?

(a)  

3.

How many medians can a triangle have?

a)

1

b)

2

c)

3

d)

Infinite

4.

Which is the longest side of the triangle ABC right-angled at A ?

a)

AC

b)

BC

c)

AB

d)

None of these

5.

Which of the following can be the sides of a triangle ?

a)

6cm,3cm,2cm

b)

5.5cm,2.5cm, 2.5cm

c)

3cm,6cm,7cm

d)

2cm,8cm,3cm

6.

In the following figure, the measure of ∠A is

a)

70°

b)

90°

c)

80°

d)

100°

7.

The value of X in the given figure is

a)

100 °\degree

b)

60 °\degree

c)

120 °\degree

d)

80 °\degree

8.

I am enjoying this quiz on triangles and its properties.

a)

Strongly Disagree

b)

Disagree

c)

Neutral

d)

Agree

e)

Strongly Agree

9.

In the following figure, m || QR. Then, the measure of ∠QPR is

a)

80°

b)

85°

c)

75°

d)

70°

10.

He was a teacher and a philosopher. He founded that for a Right angle triangle the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Who was he ?

a)

Ramanujan

b)

Aryabhata

c)

Brahmagupta

d)

Pythagoras

11.

Angles A and B of a triangle ABC are 35° and 55°. Which of the following is true

a)

AB2 + BC2 = AC2

b)

AC2 + BC2 = AB2

c)

AB2 + AC2 = BC2

d)

None of these

12.

The measure of the angles of a triangle are 107°, 34°,39°. Name the type of the triangle?

a)

Acute-angled triangle

b)

Obtuse-angled triangle

c)

Right-angled triangle

d)

None of these

13.

The difference between the lengths of any two sides is (a)   than the length of the third side.

14.

Find the value of the unknown interior angle x in the following figure:

a)

30°

b)

35°

c)

40°

d)

45°

15.

In the following figure, find x if BA || CE.

a)

60°

b)

40°

c)

45°

d)

65°

16.

Which of the following statements is true?

a)

A triangle can have two right angles

b)

A triangle can have two obtuse angles

c)

A triangle can have two acute angles

d)

A triangle can have all the three angles less than 60°

17.

Find the area of a triangle whose altitude and base are 12 cm and 7 cm, respectively.

a)

40 cm2

b)

42 cm2

c)

44 cm2

d)

46 cm2

18.

Which of the following cannot be the sides of a right triangle?

a)

2 cm, 2 cm, 4 cm

b)

5 cm, 12 cm, 13 cm

c)

6 cm, 8 cm, 10 cm

d)

3 cm, 4 cm, 5 cm

19.

Find the sides of an equilateral triangle whose area is 9√3 cm2.

a)

6 cm

b)

7 cm

c)

8 cm

d)

9 cm