Triangle Fundamentals Flashcard

Front

Where would the largest angle of a triangle be located?

Back

Across from the longest side.

Front

Does a triangle with these side lengths exist: 15, 12, 9?

Back

Yes

Front

Two sides of a triangle have side lengths of 17 meters and 12 meters. What is the range of possible lengths for the third side?

Back

5 < x < 29

Front

What is a possible third side to a triangle with side lengths of 13 and 4?

Back

12

Front

What is a possible third side to a triangle with side lengths of 5 and 5?

Back

9

Front

What is the Triangle Inequality Theorem?

Back

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

Right triangle.

Front

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

Back

180 degrees.

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all angles measuring 60 degrees.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.