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Triangular Prisms Investigation Nets & Surface Area.

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Presentation on theme: "Triangular Prisms Investigation Nets & Surface Area."— Presentation transcript:

1 Triangular Prisms Investigation Nets & Surface Area

2 Sketch a Triangular Prism First…draw the front face. Then some parallel lines... Then connect... Ta Da! Now draw the net… Is this net the only possible answer?

3 Which ones could be the net for this object? Must have: 2 congruent equilateral triangles 3 congruent rectangles Triangles not equilateral… Rectangles not congruent Triangles are equilateral… Need 3 congruent rectangles…

4 Draw the net and find the surface area 2 congruent scalene triangles 6 cm 2 1 rectangle 5cm by 7cm Find the area of each face. The sum is the surface area 6 cm 2 35 cm 2 28 cm 2 21 cm 2 Surface Area is 96 cm 2 1 rectangle 4cm by 7cm 1 rectangle 3cm by 7cm

5 Draw the net and find the surface area 2 congruent equilateral triangles 3 congruent rectangles 2 cm 8 cm 2 4cm 1.6 cm 2

6 Find the surface area

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