Which of the following statements are true: (i)The vertex of an angle lies in its interior. (ii)The vertex of an angle lies in its exterior (iii)The vertex of an angle lies on it.

Where does the vertex of an angle lie?

The vertex of an angle lies (a)in its interior (b) in its exterior (c)on the angle (d) inside the angle

Which of the following sets of points lies in the exterior of the angle PQR?

The vertex angle fo a biprism is of the order

Consider the following statements : 1. The orthocentre of a triangle always lies inside the triangle. 2. The centroid of a triangle always lies inside the triangle. 3. The orthocentre of a right angled triangle lies on the triangle. 4.The centroid of a right angled triangle lies on the triangle. Which of the above statements are correct ?

The vertex angle of an isosceles triangle is 80^(@) , Find ot the measure of base angles .

An exterior angle of is 100^(@) and its interior opposite angles are equal to each other.Find the measure of each angle of the triangle .

If the exterior angle of a triangle is 130° and its interior opposite angles are equal, then measure of each interior opposite angle is