Triangles 3- isosceles&equilateral

Front

What is an isosceles triangle?

Back

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

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length.

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 degrees.

Front

How do you find the length of a side in an isosceles triangle?

Back

In an isosceles triangle, if you know the lengths of the equal sides and the angle between them, you can use the Law of Cosines to find the length of the base.

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that 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.

Front

If two angles of a triangle are equal, what can be said about the sides opposite those angles?

Back

If two angles of a triangle are equal, the sides opposite those angles are also equal in length.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle can be calculated using the formula: Area = 1/2 * base * height.

Front

How do you determine if a triangle is equilateral?

Back

A triangle is equilateral if all three sides are of equal length and all three angles are equal to 60 degrees.

Front

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

Back

In an isosceles triangle, the angles opposite the equal sides are also equal.

Front

What is the base of an isosceles triangle?

Back

The base of an isosceles triangle is the side that is not equal to the other two sides.