The height of a triangular prism is 10 cm . LThe sides of the base are 3cm 4cm 5cm then T.S.A is
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Answer:132 cm square
Step-by-step explanation:
Since it is a prism , it has three rectangular faces and two congruent triangular ones
Area = (3+4+5)×10. (Sum of areas of rectangular faces)
+ 2× (0.5 × 3×4). (Area of triangles)
= 132
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