All about Triangles

Front

Classify the triangle by its angles and sides: Right, Scalene

Back

A right triangle has one angle measuring 90 degrees and a scalene triangle has all sides of different lengths.

Front

Can the following 3 numbers be side measures of a triangle: 3, 10, 8?

Back

Yes, these numbers can form a triangle as they satisfy the triangle inequality theorem.

Front

Find the measure of the indicated angle: 45 degrees

Back

The angle measures 45 degrees.

Front

List the angles in order from greatest to least: B, A, C

Back

Angle B is the largest, followed by angle A, and angle C is the smallest.

Front

In a triangle, how many total degrees are there?

Back

A triangle has a total of 180 degrees.

Front

Define an acute triangle.

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

Define an obtuse triangle.

Back

An obtuse triangle is a triangle that has one angle greater than 90 degrees.

Front

Define an equilateral triangle.

Back

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

Front

What is the triangle inequality theorem?

Back

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

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.