Geometry: Semester 1 Review

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°.

Front

Define a right triangle.

Back

A right triangle is a triangle that has one angle measuring 90°.

Front

What is the Pythagorean theorem?

Back

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape. Types include translation, rotation, reflection, and dilation.

Front

What is the formula for the area of a triangle?

Back

Front

How do you find the missing angle in a triangle?

Back

To find the missing angle in a triangle, subtract the sum of the known angles from 180°.

Front

What is the definition of congruent triangles?

Back

Congruent triangles are triangles that are identical in shape and size, meaning their corresponding sides and angles are equal.

Front

What is the difference between a rotation and a reflection?

Back

A rotation turns a shape around a fixed point, while a reflection flips a shape over a line, creating a mirror image.

Front

What is the formula for the perimeter of a triangle?

Back

Front

What is an isosceles triangle?

Back

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