Find the cost of painting a cuboid of dimensions 20cm at the rate of 10 paisa per square cm
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Answer:
given;edge of cube =20 cm(a)
rate of painting =10p/cm square
Step-by-step explanation:
- total surface area of cube=6a^2
- =6×20^2
- =6×400
- =2400cm^2 //
- cost of painting=10p/cm^2
- 10×2400
- =24000p
- =24000÷100 Rs
- =240 rs //
- •°• cost of painting =240 rs
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