Triangles
A triangle with angles 30, 70, 80 degrees.
What is an acute triangle?
A closed-figure made of four straight lines and four angles.
What is a quadrilateral?
The tool used to measure an angle.
What is a protractor?
Formed by two rays that share an endpoint.
What is an angle?
A triangle with two congruent sides.
What is an isosceles triangle?
A four-sided shape that contains only parallel lines.
What is a parallelogram?
What is 90 degrees?
Goes on infinitely in both directions.
A triangle with no congruent sides.
What is a scalene triangle?
A four-sided shape that contains only right angles.
What is a rectangle?
An angle with a measurement greater than 90 but less than 180.
What is an obtuse angle?
A part of a line that has two endpoints.
What is a line segment?
A triangle with angles 20, 100, and 60 degrees.
What is an obtuse triangle?
A shape with only one set of parallel lines.
What is a trapezoid?
An angle with a measurement of less than 90 degrees.
What is an acute angle?
An exact location in space.
What is a point?
The sum of the angles of any triangle.
What is 180?
A shape that is both a rectangle and a rhombus.
What is a square?
If a right angle is split by a ray into two adjacent angles, and one is 36 degrees, this is the measurement of the other angle.
What is 54 degrees?
A portion of a line that contains one endpoint and continues infinitely in the other direction.
What is a ray?