Question

The diagonal of a square of side 10 cm is
(A) 10 V3 cm
(B) 10 v2 cm
(C) 10 cm
(D) 5 V2 cm​

Answer 1

10root2
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Answer 2

Answer:

10√2 cm

Step-by-step explanation:

The side of square is 10 cm

In right angled △ABD

AB^2  +AD^ 2  =BD^ 2  [according to Pythagoras theorem]

(10)^2 +(10)^ 2 =BD^ 2

 100+100=BD^2

 BD^ 2  =200

BD=10 √2 cm

∴ Diagonal of square =10  √2  cm.

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