Flashcard Review + Section 4-5

Front

What is the angle opposite the base in an isosceles triangle called?

Back

The vertex angle.

Front

What type of congruence shortcut can be used for triangles?

Back

Not possible.

Front

What is the measure of the indicated angle if it is given as 36 degrees?

Back

36 degrees.

Front

What is the side opposite the right angle in a right triangle called?

Back

The hypotenuse.

Front

Define an isosceles triangle.

Back

A triangle with at least two equal sides.

Front

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

Back

180 degrees.

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 congruent triangles?

Back

Triangles that are identical in shape and size.

Front

What is the base of an isosceles triangle?

Back

The side that is not equal in length to the other two sides.

Front

What is the relationship between the angles in an isosceles triangle?

Back

The angles opposite the equal sides are equal.