Triangles
A triangle with one right angle and two acute angles.
What is a right triangle?
I have four sides, with two pairs of opposite sides parallel.
What is a parallelogram?
This geometric figure extends forever in both directions.
What is a line?
I am an angle of greater than zero degrees and less than 90 degrees.
What is an acute angle?
I have a slanted direction and I connect opposite angles of a quadrilateral to form two triangles.
What is a diagonal line?
A triangle with three acute angles.
What is an acute triangle?
True or False: All quadrilaterals have four sides.
What is "True"?
This geometric figure has two ends, which are called endpoints.
What is a line segment?
I am an angle of 180 degrees.
What is a straight angle?
We are across from each other and we do not meet at a point, but we are not necessarily parallel.
What is opposite?
A triangle with one obtuse angle and two acute angles.
What is an obtuse triangle?
I have four sides, with exactly one pair of opposite sides parallel.
What is a trapezoid?
This geometric figure begins at an endpoint and extends forever in on direction.
What is a ray?
I am an angle of 90 degrees.
What is a right angle?
We are lines or line segments that are always the same distance apart.
What is parallel?
A triangle with two equal sides.
What is an isosceles triangle?
I have four sides, with two pairs of opposite sides parallel, four equal sides, and no right angles.
What is a rhombus?
This geometric figure has two rays with the same endpoint.
What is an angle?
I am an angle of greater than 90 degrees and less than 180 degrees.
What is an obtuse angle?
We are lines or line segments that cross each other to form square corners/right angles.
What is perpendicular?
A triangle with no equal sides.
What is a scalene triangle?
I have four sides, with two pairs of opposite sides parallel, and four right angles. I am two different shapes.
What is a rectangle AND a square?
This geometric figure can be found on the end of a ray, line segment, or angle, and is sometimes referred to as the vertex.
What is an endpoint?
I am an angle of greater than 180 degrees and less than 360 degrees.
What is a reflex angle?
Generally speaking we have the same shape and size, and if we are triangles, specifically, then we have the same side lengths and angle measures.
What is congruent?