Finding the Area of a Triangle and Other Polygons

Front

What is the formula for the area of a triangle?

Back

A = 1/2 bh

Front

If the height of a triangle is 5 ft and the base is 7 ft, what is the area?

Back

17.5 square ft

Front

The base of a triangle is 10 ft and the height is 4 ft. What is the area?

Back

20 square ft

Front

What does 'base' refer to in a triangle?

Back

The base is one side of the triangle, often the bottom side used to calculate area.

Front

What does 'height' refer to in a triangle?

Back

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

Front

How do you find the area of a rectangle?

Back

A = length × width

Front

What is the area of a triangle with a base of 6 ft and a height of 3 ft?

Back

9 square ft

Front

If a triangle has an area of 12 square ft and a base of 4 ft, what is the height?

Back

6 ft

Front

What is a polygon?

Back

A polygon is a closed figure with three or more straight sides.

Front

How do you find the area of a polygon?

Back

The area can be found by dividing the polygon into simpler shapes (like triangles) and summing their areas.