A rectangular sheet is 45cm long and 25cm Broad.From each corner of a square of side 5cm is cut off.An open Box is made of the remaining sheet by folding up the flap.
Find the surface area and Its volume
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Answers
Answer:
Area of the rectangular sheet=l*b
L=45
B=25
=45*25
=1125 square cm
We have to find the each area of the square to be cut =5*5
=25square cm
25square cm is cut in each corner=4*25
=100 square cm is cut off
Reminding =1125-100
=1025square cm is remaining
With this remaining we are going to make a cube
Tsa = 6a square cm
1025=6a square
a square=1025/6
a=√170.8
a=13.06
Volume of the cube =a cubic cm
=13.06*13.06*13.06
=2227.560616 cubic cm
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Step-by-step explanation:
We Have :-
Rectangular sheet is 45cm long and 25cm Broad
Square of side 5cm
Solution :-
Area of Rectangle = Length × Breadth
Area = 45 × 25
Area = 1125 cm²
Area of Square = Side × Side
Area = 5 × 5
Area = 25 cm²
A square is cut from each corner
Area = 4 × 25
Area = 100 cm²
Remaining Area = 1125 - 100
Area = 1025 cm²
This will be the Surface Area of the Cube
Surface Area = 6 × side²
1025 = 6 × side²
side² = 1025 / 6
side² = 170.84
side = 13.07 cm
Volume Of Cube
Volume = side³
Volume = ( 13.07 )³
Volume = 2232.681 cm³