Triangles
A triangle with one 90-degree angle.
What is a right triangle?
Two angles that add up to 90 degrees.
What are complementary angles?
A polygon with all sides and angles equal.
What is a regular polygon?
The distance around a shape.
What is perimeter?
The formula a² + b² = c².
What is the Pythagorean Theorem?
The longest side of a right triangle.
What is the hypotenuse?
Two angles that add up to 180 degrees.
What are supplementary angles?
Angles inside a polygon.
What are interior angles?
The length of one side of a shape.
What is side length?
In the Pythagorean Theorem, c represents this side.
What is the hypotenuse?
The two shorter sides of a right triangle.
What are legs?
Angles across from each other when two lines intersect.
What are vertical angles?
An angle formed outside a polygon by extending one side.
What is an exterior angle?
The slanted height of a pyramid or cone.
What is slant height?
If a² + b² = c² is true, then the triangle is this type of triangle.
What is a right triangle?
The sum of the three interior angles of a triangle.
What is 180 degrees?
Angles next to each other that share a side.
What are adjacent angles?
A segment that connects two non-adjacent vertices of a polygon.
What is a diagonal?
The distance across a circle through the center.
What is diameter?
To find the hypotenuse, you take the square root after doing this.
What is adding a squared and b squared?
The theorem that states the sum of the interior angles of a triangle is 180 degrees.
What is the Triangle Sum Theorem?
An exterior angle of a triangle equals the sum of these two angles.
What are the two remote interior angles?
The formula (n − 2) × 180 is used to find this.
What is the sum of interior angles of a polygon?
Half the diameter of a circle.
What is radius?
If the sides of a triangle satisfy a² + b² = c², this theorem confirms it is a right triangle.
What is the Converse of the Pythagorean Theorem?