Scalene Triangle

Q.

Every equilateral triangle is isosceles. True or False?

1. True

2. False

Q. A triangle with all sides un-equal is called a .

1. equilateral triangle
2. scalene triangle
3. isosceles triangle

Q.

All angles in an equilateral triangle are equal. True or False?

1. True

2. False

Q.

On the basis of sides, triangles are classified into three types. True or False?

1. False

2. True

Q.

The three sides of a triangle measure 10cm, 6 cm and 12 cm. Classify the triangle based on its sides.

1. Equilateral triangle

2. Scalene triangle

3. Isosceles triangle

4. None of the above

Q. Which of the following is true for a scalene triangle $△ABC$?

1. $\angle A\ne \angle B\ne \angle C$
2. $\angle A=\angle B=\angle C$
3. $\angle A\ne \angle Bbut\angle B=\angle C$
4. None of the above

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 type of triangle is pictured?

1. Acute-angled and Equilateral
2. Obtuse-angled and Equilateral
3. Acute-angled and Isosceles
4. Obtuse-angled and Scalene

Q. Which triangle has an angle equal to ${90}^o?$

1. Acute-angled triangle
2. Right-angled triangle
3. Obtuse-angled triangle
4. None of these

Q.

All angles in a scalene triangle are ___ .

Q. What is the type of triangle shown below?

Q.

A triangle is said to be$\_\_\_\_\_$if each one of its sides has different lengths. [equilateral triangle/ scalene triangle]

Q. From the following figure, identity the type of triangle:

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

Q. A triangle having all sides of different length is known as

(a) scalene triangle
(b) isosceles triangle
(c) an equilateral triangle
(d) an acute triangle

Q.

Write the complement of $30°$

Q. Find the sum of all the sides of the given triangle.
(scale is in centimetres)

1) 8 cm 2) 10 cm

3) 12 cm 4) 14 cm

Q. For a right angled triangle ABC (right angle at A), What is the location of incentre?

1. Inside ABC
2. on BC
3. on A
4. Outside ABC

Q. If a triangle is equiangular, then it is an obtuse angled triangle. Which of the following statements doesn't convey the same meaning as of this mentioned sentence.

1. Equiangularity is a sufficient condition for triangle to be obtuse angled.
2. A triangle is equiangular only if it is an obtuse angled triangle
3. A triangle is only obtuse is obtuse angled if it is equiangular
4. If a triangle is not obtuse angled triangle then it is not an equiangular triangle.