Geometry 10 Benchmark 3 Review

Front

What is the slope of a line that is perpendicular to the line y = 1/3 x + 4?

Back

-3

Front

What is the definition of congruent angles?

Back

Angles that have the same measure.

Front

What is the circumcenter of a triangle?

Back

The point where the perpendicular bisectors of the sides of the triangle intersect.

Front

What is the formula for the area of a sector of a circle?

Back

Area = (θ/360) * πr², where θ is the angle in degrees and r is the radius.

Front

If two angles are complementary, what is the sum of their measures?

Back

90 degrees.

Front

What is the definition of a line segment?

Back

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

Front

What is the relationship between the angles in a linear pair?

Back

They are supplementary, meaning their measures add up to 180 degrees.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the definition of a polygon?

Back

A closed figure formed by a finite number of straight line segments.

Front

What is the Pythagorean theorem?

Back

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