2TTO §8.1 Area June22

• Wiskunde
• Middelbare school
• havo, vwo
• Leerjaar 2

8.1 Aria triangles

Area of triangles

Make exercise 1  from §8.1

video MW or Wiskundeacademie

Area of a triangle

The area of a triangle can be calculated with the formula:

This can be shortened to:

                                          or 

Area of triangles

Area of triangles

Base and height of a triangle

The base is one side of a triangle.

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

The height is perpendicular to the base.

In a triangle there are 3 base/height combinations.

Base and height of a triangle

The height of a triangle can also be outside the triangle, perpendicular to the line through the base.

Area of a triangle

HW

Make and correct §8.1

Photo HW