Question

divide 3 by 4 feet into equal triangular halves to make 2 masks

Answer 1

To divide a 3 by 4 foot piece of material into two equal triangular halves to make 2 masks, you would need to cut the material diagonally across the rectangle to form two right-angled triangles.

Each triangle would have a base of 3 feet and a height of 4 feet. This would result in two equal triangles, each with an area of 6 square feet, which can then be used to make 2 masks.