Question

find the area of square whose diagonal is 20 cm​

Answer 1

Answer:

Please find attached

Step-by-step explanation:

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Answer 2

Answer:

let the side of the suarebe x

then by pythagorus theorm

x^2 +x^2 =20^2

2x^2=400

x^2 =200

x=10√2

so area pf square = side^2

10√2❎10√2

=200cm^2