two opposite faces of a cube are open its each side is 30 cm what would be the cost of painting its outside surface at the rate of rupees 5 per square cm
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total surface area of outside of cube=4l×l
=4×30×30
=3600 cm2
cost =rate×area
=5×3600
=Rs 18000
=4×30×30
=3600 cm2
cost =rate×area
=5×3600
=Rs 18000
saritasharma25:
thanks for giving answer thank uou
Answered by
1
Answer: 18000
Step-by-step explanation:
Side of cube = 30cm
Area of cube with four sides = lateral surface area
Lateral surface area = 4*side*side
Lateral surface area of this cube = 4*30cm*30cm
Lateral surface area of this cube =4*900cm sq
Lateral surface area of this cube = 3600cm sq
Cost of painting 1sq cm = rs.5
Cost of painting 3600sq.cm = rs.5*3600
Cost of painting 3600sq.cm = rs.18000
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