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ssc cgl

· started a discussion

· 1 Months ago

explain (Question: 257201.0 )

what is that formula for surface area

Question:

The side of a square exceeds the side of another square by 4 cm and the sum of the areas of the two squares 400  cm2   . Then find the total surface area of such figures which is formed by the two cube. Which have dimensions same as the square given above.

Options:
A)

2512  cm2   

B)

2812  cm2   

C)

2112  cm2   

D)

2612  cm2   

Solution:

Ans: (c)

  

mrinal shastry

· commented

· 1 Months ago

1 surface is joined so tsa will be 5× side^2 in place of 6× side^2 and area in between 2 squares of side 16 and 12 is substracted.
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