geometry semester review

Front

What is the SAS similarity theorem?

Back

The SAS (Side-Angle-Side) similarity theorem states that if two sides of one triangle are proportional to two sides of another triangle and the included angles are equal, then the two triangles are similar.

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

Front

What are linear pair angles?

Back

Linear pair angles are two adjacent angles whose non-common sides form a straight line, summing up to 180 degrees.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

How do you find the length of a missing side in a right triangle?

Back

Use the Pythagorean theorem: a² + b² = c², where c is the hypotenuse and a and b are the other two sides.

Front

What is the value of x in a triangle if one angle is 28° and the other two angles are 90° and 62°?

Back

x = 28° (the sum of angles in a triangle is 180°).

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the relationship between the angles in similar triangles?

Back

In similar triangles, corresponding angles are equal.