1. Find the total surface area and volume of the
composite figure.
For class 10
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Answer:
total surface area
area = area of 4 faces + 4 faces of the cube + area of the base
= 1/2 × 16cm × 10cm × 4 + 5×16cm ×16cm
= 1600cm²
volume = volume of the cube + volume of the tetrahedron
= 16cm × 16cm × 16cm + ( 16 × 16 × 16 / 6 √2 )
= 4578.71 cm³
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