LT2C Review

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length, which also means that the angles opposite those sides are equal.

Front

What is the measure of the angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.

Front

What are base angles in an isosceles triangle?

Back

Base angles are the angles opposite the equal sides of an isosceles triangle, and they are congruent.

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) where opposite sides are parallel and equal in length.

Front

What is the sum of the interior angles in a parallelogram?

Back

The sum of the interior angles in a parallelogram is 360 degrees.

Front

If one angle in a parallelogram is 115 degrees, what is the measure of the opposite angle?

Back

The opposite angle is also 115 degrees because opposite angles in a parallelogram are equal.

Front

What is the relationship between adjacent angles in a parallelogram?

Back

Adjacent angles in a parallelogram are supplementary, meaning they add up to 180 degrees.

Front

How do you find the measure of an unknown angle in an isosceles triangle?

Back

Subtract the measure of the known angle from 180 degrees and divide by 2 to find the measure of each base angle.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.

Front

What is the formula for the sum of the angles in any polygon?

Back

The sum of the interior angles of a polygon can be calculated using the formula (n-2) * 180 degrees, where n is the number of sides.