Triangle is the closed basic shape in the geometry which has three edges and three vertices. There are three types of the triangle which are classified on the basis of the length of their sides and it is also classified on the basis of the internal degree of the triangles. It is a two-dimensional figure. So take this quiz and know more about the triangles.

1. On the basis of the length of the side, how many types of the triangle?

A. 2

B. 3

C. 4

D. 5

2. A triangle which has all sides are equal is called ....

A. Equilateral triangle

B. Isosceles triangle

C. Scalene triangle

D. None of these

3. All angles of equilateral triangle is ...

A. 80 degree

B. 70 degree

C. 60 degree

D. 50 degree

4. What is the sum of the measures of the three exterior angles (one for each vertex) of any triangle?

A. 180 degree

B. 90 degree

C. 260 degree

D. 360 degree

5. Triangles that do not have an angle measuring 90° are called ....

A. Right angle triangle

B. Oblique triangles

C. Both of these

D. None of these

6. The point is the intersection of the medians is called ....

A. Centroid of a triangle

B. Incentre of a triangle

C. Orthocentre of a triangle

D. None of these

7. ....... is the center of the circle which touches the sides of a given triangle.

A. Centroid of a triangle

B. Incentre of a triangle

C. Orthocentre of a triangle

D. None of these

8. A triangle with all interior angles measuring less than 90° is .....

A. Acute triangle

B. Right angle triangle

C. Obtuse Triangle

D. All of these

9. A scalene triangle has all its sides of ........... lengths.

A. Equal

B. Different

C. Both of these

D. None of these

10. ......... also called tick marks, are used in diagrams of triangles and other geometric figures to identify sides of equal lengths.

A. Tally mark

B. Review Mark

C. Hatch marks

D. None of these

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