To calculate the surface area of a triangular prism, you need to find the area of each of the three faces and add them together.
1. The two triangular faces:
- Each triangle has a base of 4 cm and a height of 3 cm.
- The area of one triangle is (1/2) * base * height = (1/2) * 4 cm * 3 cm = 6 square cm.
- Since there are two triangular faces, the total area of the two triangular faces is 2 * 6 = 12 square cm.
2. The three rectangular faces:
- The area of each rectangular face is length * width.
- Two of the rectangular faces have dimensions of 5 cm x 3 cm = 15 square cm each.
- The third rectangular face has dimensions of 5 cm x 4 cm = 20 square cm.
- The total area of the three rectangular faces is 2 * 15 + 20 = 50 square cm.
3. Add the areas of all the faces:
- 12 square cm (triangular faces) + 50 square cm (rectangular faces) = 62 square cm.
Therefore, the surface area of the triangular prism is 62 square centimeters.