Geometry Review Flashcardizz

Front

Can you make a triangle with any 3 side lengths?

Back

No, the sum of the lengths of any two sides must be greater than the length of the third side (Triangle Inequality Theorem).

Front

What do you call an eight-sided polygon?

Back

Octagon.

Front

Find the missing angle if two angles are 147° and 30°. What is the third angle?

Back

33° (The sum of angles in a triangle is 180°).

Front

Name a right angle.

Back

Angle DBA (A right angle is exactly 90°).

Front

How many sides does a dodecagon have?

Back

12 sides.

Front

What is the sum of the interior angles of a triangle?

Back

180°.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What do you call a polygon with 5 sides?

Back

Pentagon.

Front

What is the Pythagorean theorem?

Back

Front

What is the definition of a complementary angle?

Back

Two angles that add up to 90°.