Triangles

Front

What are the three types of triangles based on their angles?

Back

Acute triangle, right triangle, obtuse triangle.

Front

What is an obtuse triangle?

Back

A triangle that has one angle measuring more than 90 degrees.

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Front

What is a right triangle?

Back

A triangle that has one angle measuring exactly 90 degrees.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What is an isosceles triangle?

Back

A triangle that has exactly two sides of equal length.

Front

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

Back

Use the fact that the sum of the angles in a triangle is always 180 degrees.

Front

What is the formula to calculate the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the relationship between the sides and angles of a triangle?

Back

In a triangle, larger angles are opposite longer sides.