Area of a Triangle worksheet with activities to calculate and estimate triangle areas using grid squares.
Worksheet titled "Area of a Triangle" with two activities. Activity 1 shows four colored triangles on a grid for calculating area by counting full and half squares. Activity 2 shows four more triangles on a grid for estimating area by counting squares. Each full square equals 1 cm². A cartoon boy appears in the top right corner. The CGP+ logo and website cgpplus.co.uk are at the bottom.