The length of diagonal of a square is 13√2 cm, then the length of its each side is'

13

Step-by-step explanation:

13root 2 squared is 338

338/2=169

root 169 is 13

13 cm

Step-by-step explanation:

the diagonal of a square bisects the right angles so you have a 45-45-90 triangle

this type of triangle has a ratio of sides according to the following:

1 : 1 :  where the legs are 1 and the hypotenuse is

So, in this problem if the hypotenuse is 13 then the legs are 13

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a

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step-by-step explanation: