Geometry: Semester 1 Final

Front

What is the definition of a triangle?

Back

A triangle is a polygon with three edges and three vertices.

Front

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

Back

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

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the definition of congruent triangles?

Back

Congruent triangles are triangles that are identical in shape and size.

Front

What is the difference between acute, obtuse, and right triangles?

Back

Acute triangles have all angles less than 90°, obtuse triangles have one angle greater than 90°, and right triangles have one angle equal to 90°.

Front

What is a line segment?

Back

A line segment is a part of a line that is bounded by two distinct endpoints.

Front

What is the distance formula?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).

Front

What is the definition of slope?

Back

Slope is a measure of the steepness of a line, calculated as rise over run.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.