Triangles
Angles
Polygons
Measurements
Pythagorean Theorem
Triangle Sum Theory
100
A triangle with one 90-degree angle.
What is a right triangle?
100
Two angles that add up to 90 degrees.
What are complementary angles?
100
A polygon with all sides and angles equal.
What is a regular polygon?
100
The distance around a shape.
What is perimeter?
100
The formula a² + b² = c².
What is the Pythagorean Theorem?
100
The sum of the interior angles of a triangle.
180 degrees.
200
The longest side of a right triangle.
What is the hypotenuse?
200
Two angles that add up to 180 degrees.
What are supplementary angles?
200
Angles inside a polygon.
What are interior angles?
200
The length of one side of a shape.
What is side length?
200
In the Pythagorean Theorem, c represents this side.
What is the hypotenuse?
200
In the Right Triangle ABC, the measure of angle A is 20, angle C is a right angle, what is the measure of angle B?
Triangle Sum Theorem
/_A+/_B+/_C=180
20+/_B+90=180
/_B+110=180
/_B+110-110=180-110
/_B=70 degrees
300
The two shorter sides of a right triangle.
What are legs?
300
Angles across from each other when two lines intersect.
What are vertical angles?
300
An angle formed outside a polygon by extending one side.
What is an exterior angle?
300
The slanted height of a pyramid or cone.
What is slant height?
300
If a² + b² = c² is true, then the triangle is this type of triangle.
What is a right triangle?
300
In Triangle ABC, if angle B is 55 degrees and angle angle C is 65 degrees, what is the degree measure of angle A?
60 degrees
400
The sum of the three interior angles of a triangle.
What is 180 degrees?
400
Angles next to each other that share a side.
What are adjacent angles?
400
A segment that connects two non-adjacent vertices of a polygon.
What is a diagonal?
400
The distance across a circle through the center.
What is diameter?
400
To find the hypotenuse, you take the square root after doing this.
What is adding a squared and b squared?
400
Is it possible to have two right angles in a triangle? Why or why not?
No because Triangles have 3 angles that add up to 180. So having 2 90 degree angles would already put you at 180 degrees.
500
The theorem that states the sum of the interior angles of a triangle is 180 degrees.
What is the Triangle Sum Theorem?
500
An exterior angle of a triangle equals the sum of these two angles.
What are the two remote interior angles?
500
The formula (n − 2) × 180 is used to find this.
What is the sum of interior angles of a polygon?
500
Half the diameter of a circle.
What is radius?
500
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?
500
In Triangle ABC, if angle A is x, angle B is 2x, and angle C is 3x, what is x?
x=30