Find the total surface area of a triangular pyramid with base lengths of 10 and base height of 8.7 and slant height of 14. (Note: Base is an equilateral triangle.)

 Find the surface area of a triangular pyramid whose base length 4, base width 4 and the height of the pyramid is 12.

1.    Find the surface area of a triangular pyramid whose area of the base triangle is 24 units², the perimeter is 12 units, and the slant height of the pyramid is 18.

Determine the total surface area of a triangular pyramid whose base area is 36 sq. units, the perimeter of the triangle is 24 units, and the slant height of the pyramid is 28 units.

Find the surface area of a triangular pyramid whose area of the base triangle is 24 units², the perimeter is 12 units, and the slant height of the pyramid is 18.

Each side of a triangular pyramid is of length 3 units, the height of the base triangle is 6, and the slant height is 5. Find its total surface area.

Is the sentence true or false?

Surface Area = 1⁄2(a × b) + 3⁄2(b × s)

Find the total surface area of a triangular pyramid if the base area of a triangle is 24 squared units, the perimeter of the triangle is 10 units, and the slant height of the pyramid is 12 units.

Find the surface area of a triangular pyramid whose base length 4, base width 12 and the height of the pyramid is :

Find the surface area of a triangular pyramid, if the height of the triangular base is​ 12 units, the side of a triangle is 10 units, and the slant height of the pyramid is 15 units.