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Jaya

· started a discussion

· 1 Months ago

Maths (Question: 390447.0 )

When new diagonal is 20√2 than how your side become 20 ? Please explain

Question:

The area of square is 800 square mt. A new square is formed such as the length of the diagonal of this square is  12     multiple of the first square. Find the area of new square.

Options:
A)

4002    m2 

B)

400 m2 

C)

8002    m2 

D)

1600 m2 

Solution:

Ans: (b)

  

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

New diagnol is 20(root 2),
And by formula Diagnol= Side(root 2)
Comparing both, we get side = 20
Thus area = 20*20=400

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