Classification of Triangles Based on Sides

Q.

What do we call a triangle with no equal sides?

1. Scalene triangle

2. Equilateral triangle

3. Right triangle

4. Isosceles triangle

Q.

What do we call a triangle that has all three sides of equal length?

1. Equilateral Triangle

2. Scalene Triangle

3. Isosceles Triangle

4. Right Triangle

Q.

Classify the following triangles as scalene, isosceles, equilateral according to the length of their sides.

$\text{3 cm, 4 cm}$ and $\text{5 cm}$.

Q.

In which of the following triangles are the altitude and medians the same?

1. Equilateral triangle

2. Isosceles triangle

3. Scalene triangle

4. Right angle triangle

Q. In a/an triangle, all the altitudes and the medians coincide with each other.

1. equilateral
2. isosceles
3. obtuse-angled

Q.

Name the type of the given triangle.

$∆XYZ$ with $m\angle Y=90°$ and $XY=YZ$

Q. Which of the following is not a classification of a triangle based on the length of its side?

1. Isosceles triangle
2. Right angled triangle
3. Scalene triangle
4. Equilateral triangle

Q.

Classify the following triangles as scalene, isosceles, equilateral according to the length of their sides.

$\text{12 cm, 8 cm}$and $\text{13 cm}$.

Q.

How many lines of symmetry are possible for the given figure?

1. 1

2. 3

3. 4

4. 2

Q. Question 4
ABCD is a quadrilateral. Is AB + BC + CD + DA > AC + BD?

Q. What type of triangle is $△ABC$, where AB = BC = CA = 12 cm.

1. Right angled triangle
2. Isosceles triangle
3. Scalene triangle
4. Equilateral triangle

Q.

Draw rough sketches for the following:

(a) In ΔABC, BE is a median.

(b) In ΔPQR, PQ and PR are altitudes of the triangle.

(c) In ΔXYZ, YL is an altitude in the exterior of the triangle.

Q.

Question 12

The $\Delta ABC$ formed by AB = 5 cm, BC = 8 cm and AC = 4 cm is

a) An isosceles triangle only
b) A scalene triangle only
c) An isosceles right triangle
d) Scalene as well as a right triangle

Q. Which of the following has no lines of symmetry ?

1. A scalene triangle
2. An isosceles triangle
3. An equilateral triangle
4. All of these

Q. A scalene triangle has three different side lengths and three different ______.

1. symmetry
2. radius
3. angles
4. arc

Q.

A scalene triangle has three different side lengths and three different ___________

1. Radius

2. Angles

3. Arc

4. Symmetry

Q.

What do we call a triangle with no equal sides?

1. Scalene triangle

2. Equilateral triangle

3. Right triangle

4. Isosceles triangle

Q. In a triangle, all the medians meet at point A. Similarly, all the altitudes meet at point N.
Then, for which type of triangle is point A same as point N?

1. Bilateral Triangle
2. Scalene Triangle
3. Isosceles Triangle
4. Equilateral Triangle

Q. In the adjoining figure, identify the vertically opposite angles.

Q.

Classify the following triangles as scalene, isosceles, equilateral according to the length of their sides.

$\text{3 cm, 4 cm}$ and $\text{5 cm}$.

Q.

Classify the following triangles as scalene, isosceles, equilateral according to the length of their sides.

$\text{14 cm, 15 cm}$ and $\text{15 cm}$

Q.

An equilateral triangle has

1. only one line of symmetry

2. two lines of symmetry

3. three lines of symmetry

4. no line of symmetry

Q. In the given figure, $\angle X={62}^o,\angle XYZ={54}^o$. In $△XYZ$ If YO and ZO are the bisectors of $\angle XYZ$ and $\angle XZY$ respectively find $\angle OZY$ and $\angle YOZ$.

Q.

Classify the following triangles as scalene, isosceles, equilateral according to the length of their sides.

$\text{12 cm, 8 cm}$and $\text{13 cm}$.

Q.

What do we call a triangle with no equal sides?

1. Equilateral triangle

2. Right triangle

3. Isosceles triangle

4. Scalene triangle

Q.

Classify the following triangles as scalene, isosceles, equilateral according to the length of their sides.

$\text{14 cm, 15 cm}$ and $\text{15 cm}$

Q.

If all three sides of a triangle are 4 cm long, it is a/an ________.

1. scalene triangle

2. equilateral triangle

3. right triangle

4. isosceles triangle

Q. Does angle sum property holds good for the three sides of a triangle

Q.

$\angle B$ is a right angle in $△ABC$ and $\overline{BD}$ is an altitude to hypotenuse. $AB=8$ cm and $BC=6$ cm. Find the area of $△BDC$

Q. A ______ triangle has no congruent sides.

1. isosceles
2. equilateral
3. acute
4. scalene