Geometry Vocabulary

Which type of triangle has sides the same length, and angles the same size?

• Equilateral triangle
• Scalene triangle
• Right-angled triangle
• Isosceles triangle

This figure always has an angle total of 180 degrees

• Parallelogram

• Trapezoid

• Square

• Triangle

Area of a geometric figure can be defined as...

• the units of length surrounding the geometric figure

• the amount of units needed to cover a figure

• the sum of the perimeter times two

• the units needed to fill the 3-d figure

The areas of a rectangle, trapezoid and triangle include some combination of measurements that include the _________ and height.

• width

• height

• base

• pi

In an isosceles triangle, two sides and two angles are _____________.

• similar

• divergent

• proportional

• congruent

The Triangle Inequality Theorem says that when any two side lengths of a triangle are added together, they must equal the length of the third side.

• True

• False

This figure has two sets of parallel sides usually shown at an angle other than 90 degrees. What is it?

• rectangle

• triangle

• parallelogram

• trapezoid

Which figure is made from all 90 degree angles?

• rectangle

• triangle

• parallelogram

• trapezoid

This triangle type has three differently sized angles, and three differently sized side lengths. What is it?

• scalene

• equilateral

• obtuse

• isosceles

I have two parallel bases, and two other sides, what am I?

• rectangle

• triangle

• parallelogram

• trapezoid