Side Lengths of Triangles

Front

What is a triangle?

Back

A triangle is a polygon with three edges and three vertices.

Front

What are the types of triangles based on side lengths?

Back

1. Equilateral: All sides are equal. 2. Isosceles: Two sides are equal. 3. Scalene: All sides are different.

Front

What is the Triangle Inequality Theorem?

Back

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

What are the side lengths of a triangle if one side is 7 cm and the other is 7 cm?

Back

The third side must be less than 14 cm and greater than 0 cm.

Front

What is an equilateral triangle?

Back

A triangle where all three sides are of equal length.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is a scalene triangle?

Back

A triangle where all three sides have different lengths.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

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

What is the ratio of the opposite side to the adjacent side in a right triangle?

Back

This ratio is known as the tangent of the angle.