Semester 1 Final Exam

Front

AD = 12. Find AG.

Back

AG = 8.

Front

Which of these lengths CANNOT represent the sides of a triangle? 32, 34, 60, 28, 30, 58, 13, 20, 27, 2, 4, 5

Back

The lengths that cannot represent the sides of a triangle are 28, 30, and 58.

Front

Find the distance between the points (4, 3) and (0, 6).

Back

The distance is 5.

Front

Given two points (x1, y1), (x2, y2) the distance between them is:

Back

Distance = √((x2 - x1)² + (y2 - y1)²)

Front

The centroid is the point of concurrency of the 3 ____ of a triangle.

Back

Medians.

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 a median in a triangle?

Back

A median is a line segment joining a vertex to the midpoint of the opposite side.

Front

What is the definition of a triangle's altitude?

Back

An altitude is a perpendicular segment from a vertex to the line containing the opposite side.

Front

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

Back

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