Properties of triangles 1

Front

What is an acute triangle?

Back

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

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 a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring exactly 90 degrees.

Front

What is an obtuse triangle?

Back

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

Front

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

Back

To find the measure of the third angle, subtract the sum of the other two angles from 180 degrees.

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

If one angle of a triangle is 50 degrees, what is the maximum possible measure of the other two angles?

Back

The maximum possible measure of the other two angles is 130 degrees (since they must sum to 130 degrees to total 180 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

How do you classify a triangle based on its angles?

Back

Triangles can be classified as acute, right, or obtuse based on their angles.