Question

If the area of a square is 225 cm^2 , find (a) it's perimeter , and (b) the length of a diagonal.


Please explain

Please answer it correctly

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Please answer it very fast

Answer 1

hai
here is Ur ans

A*)=>perimeter

Ais the area of the length

s is the length of the side of square

substitute and slove for given:-

=>225 cm^2=s^2

we can take square root of each side of the equation givung:-

=> √225 cm^2 = s

=>15cm=s

=>s=15cm

formula for perimeter of square =
=>p=4s

where p is perimeter of square .

s is the length of side of a square

substituting from s and from the solution for
the previous formula and calculate p gives :

=>p= 4×15cm

=>p=60cm


B*)=>diagonal

=>a^2 +b^2 =^2

=>a×b=a^2

=>x×x=x^2 -225

=>√x^2 - √225

=>x=15

by using pythogarus

=>a^2 +b^2-c^2

=> x^2 +x^2 =c^2

=>x^2 +x^2 =2x

=>c^2 = 2x

=>c=√ 2x^2

=>c=x√2

=>x= 15

=>c= 15√2

=>c=21.2132034

hope my ans help full mate

Answer 2

wassup..

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