4th Grade Geometry Terms

An angle that measures less than 90 degrees but more than 0 degrees

• straight

• obtuse

• acute

• right

A triangle that has all of its angles less than 90 degrees.

• equilateral triangle

• obtuse triangle

• isosceles triangle

• acute triangle

Two angles that measures have a sum of 90 degrees.

• complementary angles

• supplementary angles

What is the complementary angle for the image above?

• 150 degrees

• 50 degrees

• 60 degrees

• 45 degrees

What type of triangle listed below best describes the triangle in the image?

• right triangle

• scalene triangle

• obtuse triangle

• equilateral triangle

What type of triangle listed below best describes the triangle in the image?

• right triangle

• scalene triangle

• obtuse triangle

• acute triangle

Which word describes lines that pass through the same point?

• parallel

• perpindicular

• intersecting

Which word best describes lines that are equal distant apart and will never intersect?

• intersecting

• perpindicular

• parallel

An angle that measures EXACTLY 90 degrees.

• obtuse

• right

• acute

• complementary

What type triangle is in the image above?

• isosceles triangle

• scalene triangle

• obtuse triangle

• right triangle