Defining terms
Classifying Triangles by Side length
Classifying triangles by angles
Classifying angles
General Geometry
100

Define a right triangle

A triangle with one right angle. 

100

What type of triangle is this?

An equilateral triangle

100

What type of triangle is this?

A right triangle

100

What is another name for a 90 degree angle?

Right angle

100

What is the measure of all angles in a square?

90 degrees

200

Define Scalene Triangle

three unequal sides

200

What type of triangle is this?

A scalene triangle

200

What type of triangle is this?


An acute triangle

200

What is an obtuse angle?

An angle that measures more than 90 degrees and less than 180 degrees. 

200

What do the "ticks" on the sides of a shape mean?

The side lengths are the same or that they are congruent. 

300

Define equilateral triangle

All sides of the triangle are equal.

300

What type of triangle is this?

A scalene triangle

300

What type of triangle is this?


An Acute triangle

300

What is an acute angle?

An angle that measures less than 90 degrees. 

300

What is an angle?

Two rays that meet at a single endpoint. 

400

Define Isosceles triangle

two sides are equal length

400

What type of triangle is this?

An Isosceles triangle

400

What type of triangle is this?

Obtuse triangle

400

What is a reflex angle?

An angle that measures more than 180 degrees and less than 360 degrees. 

400

What is the measurement of the angles in an equilateral triangle?

60 degrees

500

Define congruent

the same

500

What type of triangle is this?

Isosceles

500

What type of triangle is this?

Obtuse triangle

500

Solve for the missing angle Y in question B. 

59 degrees. 

500

Solve for the missing angle in the triangle: 


50 degrees

M
e
n
u