Right Triangle Properties and Concepts

A right triangle has one 90-degree angle. The sum of all angles in a triangle is 180 degrees, so it can't have two right angles. The right angle is marked with a square. The hypotenuse is the longest side, opposite the right angle, and the other sides are called legs. The video concludes with a humorous note on triangle legs.

What is the defining feature of a right triangle?

• It has an obtuse angle.

• It has two equal sides.

• It has a right angle.

• It has three acute angles.

What is the angle measure of a right angle?

• 120 degrees

• 90 degrees

• 60 degrees

• 45 degrees

Why can't a triangle have two right angles?

• Because it would have exactly 180 degrees in total.

• Because it would have less than 90 degrees in total.

• Because it would have more than 90 degrees in total.

• Because it would have more than 180 degrees in total.

If a triangle has one right angle, what can be said about the other two angles?

• One is acute and one is obtuse.

• They are both obtuse angles.

• They are both acute angles.

• They are both right angles.

What is the total sum of angles in any triangle?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

What happens if you add a third angle to two right angles in a triangle?

• The total will be exactly 90 degrees.

• The total will be more than 180 degrees.

• The total will be exactly 180 degrees.

• The total will be less than 180 degrees.

How is the right angle in a triangle typically marked?

• With a line

• With a square

• With a triangle

• With a circle

What is the purpose of marking the right angle with a square?

• To show it is the smallest angle

• To clearly identify the right angle

• To mark the center of the triangle

• To indicate it is the longest angle

What is the longest side of a right triangle called?

• Height

• Diagonal

• Base

• Hypotenuse

Where is the hypotenuse located in a right triangle?

• Across from the right angle

• Below the base

• Between the two legs

• Next to the right angle