Geometry 2024 Fall Test 4

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Front

What are the properties of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

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

Can a triangle be formed with side lengths 2, 6, and 4?

Back

No, because 2 + 4 is not greater than 6.

Front

Can a triangle be formed with side lengths 15, 12, and 9?

Back

Yes, because 15 + 12 > 9, 15 + 9 > 12, and 12 + 9 > 15.

Front

What is the longest side of a triangle called?

Back

The longest side of a triangle is called the hypotenuse in a right triangle.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle with all three sides of equal length.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle with at least two sides of equal length.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.