Geo Ch 1.8 Exterior <, Triangle Sum, Quadrilateral Sum

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Front

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

Back

It is a right triangle.

Front

What is the formula to find the sum of the interior angles of a quadrilateral?

Back

The sum of the interior angles of a quadrilateral is 360 degrees.

Front

Define an isosceles triangle.

Back

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

Front

What is the value of x if

Back

x = 4.

Front

What is the relationship between the angles in a triangle?

Back

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

Front

How do you classify a triangle with sides of lengths 3, 4, and 5?

Back

It is a scalene triangle.

Front

What is the exterior angle theorem?

Back

The exterior angle theorem states that the measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.

Front

If

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

What is the sum of the interior angles of a triangle with one angle measuring 50 degrees?

Back

The sum of the other two angles must be 130 degrees.