Encourage your learners to use suitable units for the area throughout this worksheet.
In sections A and B, Learners will calculate the area of various right-angled triangles on a cm square grid or from given dimensions. Students are encouraged to find the area of the rectangle each triangle fits within first and halve to get the area of each triangle.
In section C, learners are tasked with drawing two triangles with an area of 12 cm² on a cm square grid.
Section D is a spot, explain and correct the mistake activity, which aims to draw out common misconceptions.
In section E, students will have to measure the correct lengths of a triangle to calculate its area.
Lastly, in section F, students must use given areas to calculate missing lengths in two triangles.