Angles and Lines - 7th

Front

What type of lines create right angles?

Back

Perpendicular lines are lines that intersect at right angles (90 degrees).

Front

What type of lines are equidistant from each other?

Back

Parallel lines are lines that are always the same distance apart and never meet.

Front

What does C represent in the formula C = π·d?

Back

C represents the Circumference of a circle.

Front

What type of angle is smaller than 90 degrees?

Back

An Acute angle is an angle that measures less than 90 degrees.

Front

What does the red line represent in a circle?

Back

The red line represents the Radius of the circle.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

An Obtuse angle is greater than 90 degrees and less than 180 degrees.

Front

What are two lines that intersect at a point called?

Back

Intersecting lines are two lines that cross each other at a point.

Front

What is a straight angle?

Back

A Straight angle is an angle that measures exactly 180 degrees.

Front

What is the relationship between parallel lines and a transversal?

Back

When a transversal crosses parallel lines, it creates corresponding angles that are equal.