Geomtry Triangles

Total number of parts of a triangle is

• 3

• 6

• 9

• 1

A perpendicular drawn from a vertex to the opposite side of a triangle is known as

• an altitude

• a median

• an angle bisector

• a bisector

Answer explanation

A perpendicular drawn from a vertex to the opposite side of a triangle is known as an altitude.

A triangle

• may not have an altitude

• can have at most 3 altitudes

• has three altitudes

• has only one altitude

Answer explanation

A triangle has three altitudes.

Line segments joining the vertices to the mid-points of the opposite sides of a triangle are known as

• medians

• altitudes

• heights

• angle bisectors

Answer explanation

Line segments joining the vertices to the mid-points of the opposite sides of a triangle are known as medians.

A triangle whose no two sides are equal is known as

• an acute triangle

• a scalene triangle

• an isosceles triangle

• an equilateral triangle

Answer explanation

A triangle whose no two sides are equal is known as a scalene triangle.

A triangle whose two sides are equal is known as

• acute triangle

• an isosceles triangle

• a scalene triangle

• an isosceles triangle

Answer explanation

A triangle whose two sides are equal is known as an isosceles triangle.

The sum of the length of the sides of a triangle is known as its

• area

• height

• perimeter

• region

Answer explanation

The sum of the length of sides of a triangle is known as its perimeter.

A triangle having all sides of different lengths is known as

• scalene triangle

• isosceles triangle

• an equilateral triangle

• an acute triangle

Answer explanation

A triangle having all sides of different lengths is known as a scalene triangle.

A triangle whose one angle is more than 90° is called

• a scalene triangle

• a right triangle

• an acute triangle

• an obtuse triangle

Answer explanation

A triangle whose one angle is more than 90° is called an obtuse triangle.

A ship sailing in river Ganga moves towards West. if it changes to South through what angles does it turn

• 180 degree

• 270 degree

• 90 degree

• 360 degree