This topic is about calculating the area of obtuse triangles on a grid. It provides visual problems where the student must use the 1x1 squares on a grid to estimate the area of a given triangle. The level of focus is on understanding the concept connecting shapes, units of measurement, and calculation to calculate areas. This subject is part of a broader study unit on 'Triangle Area - Intro'.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.