MCQ of Maths Class 9 Chapter 8

If the three altitudes of a triangle are congruent then the triangle will be:

equilateral

right angled

isosceles

acute angled

If all the three sides of a triangle are different in length it is called ………….. triangle.

Equilateral

Lsosceles

Scalene

None of these

Th e point through which all angle bisectors of triangle pass is called _______________

Centre

In-centre

Centroide

None of these

A triangle having two sides, congruent is called:

scalene

right angled

equilateral

Isoceles

Perpendicular from vertex of a triangle to the opposite side (bade) is called:

Median

altitude

perpendicular bisector

hypotenuse

“Parallelogram” is symbolically written as:

~

gm||

||gm

//

The internal bisectors of the angles of a triangle meet at a point called.

circumcenter of triangle

Incentre of triangle

orthocenter of triangle

centroid of triangle

The _________ of a rectangle is the part of the plane enclosed by rectangle.

interior

exterior

region

area

Triangle in which one of the internal angle is of 90° is called:

equilateral triangle

right angle triangle

scalene triangle

isosceles triangle

A triangle in which only one angle ids of 90°, the triangle is called ……….. triangle.

Lsosceles triangle

Equilateral

Right triangle

None of these