Find the total surface area of this triangular prism 8cm 2cm 17cm 15cm

The total surface area of the triangular prism = 200 cm²

Solution:

Area of triangular face =

                                      = 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

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