INET || Mathematical Aptitude || Geometry || Triangles || Quiz 2020

If triangles ABC and DEF are similar such that 2AB = DE and BC = 8 cm, then what is EF equal to?

Consider the following statements in respect of an equilateral triangle:

1) The altitudes are congruent

2) The three medians are congruent

3) The centroid bisects the altitude

Which of the above statements are correct?

A triangle is formed with vertices (0, 0), (0, 1OO) and (100,100). What is the number of points inside the triangle with integer coordinates?

Out of 15 points in a plane, n points are in the same straight line, 445 triangles can be formed by joining these points. What is the value of n?

If A, B and C are the interior angles of triangle ABC then