Identify Base and Height

Front

What is the base of a triangle?

Back

The base of a triangle is one of its sides, typically the bottom side when the triangle is positioned with one vertex pointing upwards.

Front

What is the height of a triangle?

Back

The height of a triangle is the perpendicular distance from the base to the opposite vertex.

Front

How do you identify the height of a triangle?

Back

To identify the height, draw a perpendicular line from the vertex opposite the base down to the base.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is calculated using the formula: Area = 1/2 × base × height.

Front

If the base of a triangle is 8 cm and the height is 5 cm, what is the area?

Back

Area = 1/2 × 8 cm × 5 cm = 20 cm².

Front

What does it mean for a line to be perpendicular?

Back

A line is perpendicular to another line if it intersects at a right angle (90 degrees).

Front

In a right triangle, how is the height related to the base?

Back

In a right triangle, the height can be one of the legs of the triangle, depending on which side is considered the base.

Front

Can the height of a triangle be outside the triangle?

Back

Yes, if the triangle is obtuse, the height can fall outside the triangle when drawn from the vertex opposite the base.

Front

What is an obtuse triangle?

Back

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

Front

What is an acute triangle?

Back

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