Geometry - Angles and Triangles

Two rays joined by a common endpoint called the vertex.

• Vertex

• Angles

• Right Angles

• Degrees

The unit of measure for angles.

• Degrees

• Meters

• Centimeter

• inches

The end point where 2 rays join.

• period

• point

• vertex

• vertical

What is an acute angle?

• Angles that measure exactly 90 degrees.

• Angles that measure between 1 degrees and 89 degrees.

• Angles that measure more than 90 degrees, but less than 180 degrees.

• Angles that measure exactly 180 degrees.

What is an obtuse angle?

• Angles that measure exactly 90 degrees.

• Angles that measure between 1 degrees and 89 degrees.

• Angles that measure more than 90 degrees, but less than 180 degrees.

• Angles that measure exactly 180 degrees.

What is a straight angle?

• Angles that measure exactly 90 degrees.

• Angles that measure between 1 degrees and 89 degrees.

• Angles that measure more than 90 degrees, but less than 180 degrees.

• Angles that measure exactly 180 degrees.

What is a right angle?

• Angles that measure exactly 90 degrees.

• Angles that measure between 1 degrees and 89 degrees.

• Angles that measure more than 90 degrees, but less than 180 degrees.

• Angles that measure exactly 180 degrees.

Congruent means __________.

• same shape different size

• same shape same size

Similar means __________.

• same shape different size

• same shape same size

Triangle with two equal sides and two equal angles.

• equilateral

• isosceles

• scalene

• right