Les 32 Geometry Vocab Quiz

Match the triangles based on their sides.

• isosceles triangle

• a triangle that has at no sides the same length

• equilateral triangle

• a triangle that has 2 sides the same length

• scalene triangle

• a triangle that has all sides the same length

Match the triangles based on their angles.

• acute triangle

• a triangle that has one 90 degree angle

• obtuse triangle

• a triangle that has three angles less than 90 degrees

• right triangle

• a triangle that has one angle more than 90 degrees

The triangle in the photo is an example of a(n) ....

• acute triangle.

• right triangle.

• obtuse triangle.

The shape on the left has only one pair of parallel sides.

• true

• false

How many obtuse angles are in the shape on the left?

(a)  

How many acute angles are in the shape on the left?

(a)  

How many right angles are in the shape on the left?

(a)  

Perpendicular sides form what kind of angle?

• acute angle

• obtuse angle

• right angle

• straight angle