Which figure can be formed from the net? An unfolded triangular-based pyramid with a base-side measurement of 9 ft. The length from the base to the tip of a triangle is 6 ft. A pyramid with a square base has two sides measurements of six feet. The length from the base to the tip of a triangle is nine feet. A pyramid with a square base has two sides measurements of nine feet. The length from the base to the tip of a triangle is six feet. A pyramid with a triangle base has two sides measurements of nine feet. The length from the base to the tip of a triangle is six feet. A triangular-based pyramid with base-side side measurements of 6 ft. The length from the base to the tip of a triangle is 9 ft.