Triangles Based on Sides

Q. Each angle of an equilateral triangle measures ___ degrees.

Q. A triangle in which none of the sides equal is called triangle.

1. a scalene
2. an equilateral
3. an isosceles

Q.

Identify the following triangle:

1. Isosceles

2. Obtuse triangle

3. Scalene

4. Equilateral

Q.

In-centre of a triangle lies in the interior of:

1. An isosceles triangle only

2. Any triangle

3. An equilateral triangle only

4. A right triangle only

Q. Which of the following are the measurements of an isosceles triangle?

1. 23, 23, 45
2. 12, 12, 12
3. 34, 40, 12
4. 13, 14, 15

Q. Which of the following correctly describes the given triangle.

1. Right isosceles triangle.
2. Acute isosceles triangle.
3. Obtuse isosceles triangle.
4. Obtuse scalene triangle.

Q. In triangle ABC , AB=AC and Angle B = 4angle A . Find the measure of each angle of the triangle.

Q. A triangle whose one angle is more than 90° is called

(a) a scalene triangle
(b) a right triangle
(c) an acute triangle
(d) an obtuse triangle

Q. A triangle has the angles $35°\mathrm{and}35°$and find the third angle and classify the triangle.

1. $110°,\mathrm{Isosceles}\mathrm{triangle}$
2. $110°,\mathrm{Scalene}\mathrm{triangle}$
3. $100°,\mathrm{Scalene}\mathrm{triangle}$
4. $100°,\mathrm{Isosceles}\mathrm{triangle}$

Q.

A triangle with an acute angle and an obtuse angle is known as an ___.

1. Obtuse-angled Triangle

2. Acute-angled Triangle

3. Right-angled Triangle
4. Equilateral Triangle

Q. A triangle whose all three sides are of different lengths is called..........

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

Q. A triangle whose one angle is more than 90° is called

(a) a scalene triangle
(b) a right triangle
(c) an acute triangle
(d) an obtuse triangle

Q. If a triangle is scalene, then all its sides are in length.

1. equal
2. unequal
3. symmetrical

Q. Match the triangles with their names.

1. Right angle Triangle
2. Equilateral Triangle
3. Isosceles Triangle

Q.

If there are exactly two angles equal in a triangle, it is known as

1. Scalene triangle

2. Isosceles triangle

3. None of these

4. Equilateral triangle

Q. On the basis of their sides, triangles can be classified as

1. Isoceles triangle
2. Right triangle
3. Scalene triangle
4. Acute triangle

Q. If exactly two sides of the triangle are equal, then the triangle is ___.

1. isosceles
2. equilateral
3. scalene
4. right-angled

Q. A triangle in which none of the sides equal is called triangle.

1. a scalene
2. an equilateral
3. an isosceles

Q. In a triangle, if one of its angles is 95° with 2 of its sides equal to 4 cm, then it is called angled triangle.

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

Q. If the sides of a triangle are unequal, then it is ______ triangle.

1. equilateral

2. scalene

3. isosceles
4. right-angled

Q.

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

1. equilateral triangle

2. right triangle

3. scalene triangle

4. isosceles triangle

Q. If the sides of a triangle are unequal, then it is ______ triangle.

1. scalene

2. isosceles
3. right-angled

4. equilateral

Q. An equilateral triangle will always have an angle of ______ degrees.

1. 90
2. 45
3. 120
4. 60

Q.

Classify the following triangles as acute-angled, right angled or obtuse-angled according to the magnitude of their angles.

$10°,20°,150°$

Q. In a triangle, if one of its angles is 95° with 2 of its sides equal to 4 cm, then it is called angled triangle.

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

Q. The triangle shown below is an isosceles right-angled triangle.

1. False
2. True

Q. If all the sides of a triangle are equal in length, then such a triangle is called an equilateral triangle.

1. False
2. True

Q. Match the triangles with their names.

1. Right angle Triangle
2. Equilateral Triangle
3. Isosceles Triangle

Q. If a triangle is scalene, then all its sides are in length.

1. equal
2. unequal
3. symmetrical