This is a worksheets designed to help students pick a base and its corresponding height or altitude to find the area of a triangle. Each page has the same triangle drawn 3 times, and in each triangle, a different base is chose, and the student is to determine its corresponding height.
The exercise also involves using a ruler to measure the height and base and substituting these values to determine the area of the given triangle.
The teacher may assist them in drawing the height or altitude with a use of a compass or triangle. The 3 areas in each page should come up with the same result or at least very close to each other.