Geometry Final Exam Review (Spring '24)

Front

What does the SAS postulate state about triangles?

Back

The SAS (Side-Angle-Side) postulate states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the two triangles are congruent.

Front

What is a scale factor in geometry?

Back

A scale factor is a number that scales, or multiplies, some quantity. In geometry, it is the ratio of the lengths of two corresponding sides of two similar figures.

Front

How do you classify a triangle with one right angle?

Back

A triangle with one right angle is classified as a right triangle.

Front

What is the definition of an isosceles triangle?

Back

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

Front

What is the formula to find the angle of elevation?

Back

The angle of elevation can be found using the tangent function: tan(angle) = opposite/adjacent.

Front

What is the relationship between the sides of a right triangle?

Back

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (Pythagorean theorem).

Front

What does the term 'congruent' mean in geometry?

Back

Congruent means that two figures have the same shape and size.

Front

What is the difference between a scalene triangle and an isosceles triangle?

Back

A scalene triangle has all sides of different lengths, while an isosceles triangle has at least two sides of equal length.

Front

How do you find the height of a triangle?

Back

The height of a triangle can be found using the formula: height = (2 * area) / base.

Front

What is the definition of an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle greater than 90 degrees.