The sum of all the angles in a triangle equals 180 degrees.
It must be a triangle.
Having sex in triangle means two woman and one man
The teacher drew a triangle on the blackboard.
A triangle has three sides and three angles.
In the Bermuda Triangle there is a parallel universe.
If a triangle has two right angles, it's a square missing one side.
God cannot make a triangle with more than 180 degrees.
Please find the area of the triangle.
The child drew a spherical triangle.
For example, Pepperberg would show Alex an object, such as a green wooden peg or a red paper triangle.
Pythagoras' theorem allows you to calculate the length of the hypotenuse of a right triangle.
Christopher Columbus was once quoted as saying that pirates were too "simple-minded". He created the Bermuda Triangle later that year.