Types of Triangles

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

1. scalene

2. right-angled

3. equilateral

4. isosceles

Q.

An isosceles triangle can be a right-angled triangle.

1. True
2. False

Q.

A triangle whose all angles are less than ${90}^{\circ }$ is called a/an ________ triangle.

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

Q.

It is possible for a scalene triangle to be equiangular.

1. True
2. False

Q.

Each angle of a$\_\_\_\_\_\_$ triangle is equal to $60°$ [equilateral/isosceles]

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

1. Isoceles $△$
2. Right $△$
3. Scalene $△$
4. Acute $△$

Q.

In an equilateral triangle, the sides are __

Q. The angles of a triangle measure ${40}^{\circ }$, ${110}^{\circ }$ and ${30}^{\circ }$. Such a triangle is called a/an _____.

1. isosceles triangle
2. right angled triangle
3. obtuse angled triangle
4. acute angled triangle