Geometry Vocabulary

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.

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 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 with one angle measuring greater that 90 degrees

• Right Triangle

• Equilateral

• Acute Triangle

• Obtuse Triangle

What are the arrows pointing to?

• Ray

• Endpoints

• Midpoint

• Vertex

Match the following:

• e

• Point on the Plane

• < YSW

• Acute Angle

• < USR

• Line

• W

• Point not on the Plane

• V

• Obtuse Angle

​ (a)   the point where two rays, lines, or line segments meet to form an angle.

• vertex

• face

• edge

• surface area

• net

Match each term to its definition

• Coplanar Figures

• A set of points which two or more Geometric Figures have in common

• Intersection

• Three or more points which lie on the same line

• Congruent Segments

• Two or more Geometric Figures which lie on the same plane

• Collinear Points

• Two or more line segments which have the same length

A straight path with no beginning or end is a...

• ray

• line

• plane

• angle

Name this shape

• Trapezoid

• Rhombus

• Square

• Rectangle