Answer:
240 cm²
Explanation:
You want the surface area of a triangular prism with a 5-12-13 cm right triangle base, and a height of 6 cm.
Area
The area of the prism is the sum of the areas of the two triangular bases and the three rectangular faces.
A = 2(1/2)(bh) + PH = bh +PH
where b is the base length of the triangular base with height h, P is the perimeter of the triangular base, and H is the prism height (distance between triangular bases).
Filling in the given dimensions, this is ...
A = (12 cm)(5 cm) + (12 +5 +13 cm)(6 cm) = 240 cm²
The total surface area of the triangular prism is 240 cm².
<95141404393>