The total surface area of the triangular prism = 200 cm²
Solution:
Area of triangular face = [tex]\frac{1}{2}bh[/tex]
[tex]$=\frac{1}{2}\times 8 \times 15[/tex]
= 60 cm²
Area of 2 triangular faces = 2 × 60 = 120 cm²
Area of sloping rectangular side = length × width
= 17 × 2
= 34 cm²
Area of back rectangular side = length × width
= 8 × 2
= 16 cm²
Area of bottom side = length × width
= 15 × 2
= 30 cm²
Total surface area = 120 cm² + 34 cm² + 16 cm² + 30 cm²
= 200 cm²
The total surface area of the triangular prism = 200 cm²
