Isosceles and Equilateral Triangles

Front

What is an isosceles triangle?

Back

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

Tags

CCSS.4.G.A.2

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length and all three angles are equal to 60 degrees.

Tags

CCSS.4.G.A.2

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.

Tags

CCSS.8.G.A.5

Front

How do you find the length of a side in an isosceles triangle when given the base and height?

Back

You can use the Pythagorean theorem to find the length of the equal sides by creating a right triangle with the height and half the base.

Tags

CCSS.8.G.B.7

Front

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

Back

The angles opposite the equal sides are also equal.

Tags

CCSS.HSG.CO.C.10

Front

How do you calculate the area of a triangle?

Back

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

Tags

CCSS.6.G.A.1

Front

What is the formula for the perimeter of an equilateral triangle?

Back

The perimeter of an equilateral triangle is given by the formula: Perimeter = 3 * side length.

Tags

CCSS.3.MD.D.8

Front

What is the relationship between the sides and angles in an equilateral triangle?

Back

In an equilateral triangle, all sides are equal, and all angles are equal to 60 degrees.

Tags

CCSS.4.G.A.2

Front

How can you determine if a triangle is isosceles based on its angles?

Back

If a triangle has two angles that are equal, it is an isosceles triangle.

Tags

CCSS.2.G.A.1

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.