Angles
How many degrees are in a right angle?
90 degrees.
How many sides does a quadrilateral have?
4 sides.
I am a fixed location on a line. What am I?
A point.
Parallel lines cross at a 90 degree angle - True or False?
False. Parallel lines don't cross.
When charting points on a plane, which comes first? The x-coordinate or the y-coordinate?
The x-coordinate.
What is an acute angle?
An angle smaller than 90 degrees and bigger than 0 degrees.
I am a shape that is a parallelogram, a rectangle, and at the same time a rhombus. What shape am I?
A square.
True or False? A line segment exists between two endpoints.
True.
Draw two pairs of parallel lines.
These lines should always be the same distance.
True or False: Intersecting lines create right angles.
False. They only create right angles if the lines are perpendicular.
What is an obtuse angle?
An angle between 90 degrees and 180 degrees.
True or false. If you draw a rhombus, you've also drawn a rectangle.
False. A rhombus has four equal sides. A rectangle has four right angles. So maybe you drew a square, which would be both, but not necessarily.
What is a ray?
A part of a line that starts at an endpoint, then goes on forever.
What are line segments that intersect at an angle of 90 degrees?
Perpendicular lines.
Draw a rectangle and show two lines of symmetry.
Lines of symmetry should cut the shape perfectly in half.
I have an angle that can be found at an intersection point G. One line goes off toward point H, while the other line runs toward point F. What should I name my angle?
Angle HGF or Angle FGH.
Which quadrilateral has only one set of parallel lines?
Trapezoid
How do you name a line?
Using two points along the line.
Draw 2 perpendicular lines.
These lines should cross at a right angle.
Explain: A square is always a rectangle, but a rectangle is not always a square.
Answers should include that a rectangle has four right angles, which a square always has, but a square also has four equal sides, which a rectangle does not have to have.
What is a reflex angle?
An angle that measures between 180 and 360 degrees.
What is the name of the quadrilateral that has 4 equal sides and opposite sides are parallel?
Rhombus
Why can you never draw a true line?
Because a line goes on forever, and you can't draw for that long.
Line AB is parallel with line CD. Line segment AC is perpendicular to line AB. Draw these lines and line segments. What is the measurement of angle of angle ACD?
90 degrees.
How many lines of symmetry will a perfect circle have?
Infinite lines.