1.

Find the area and perimeter of a square whose diagonal is 10cm​

Answer»

ANSWER:

Step-by-step EXPLANATION:

We KNOW AREA=1/2 (diagonal)^2 

then,area=1/2(10)^2

             =1/2  X 100 =50cm^2

perimeter of a square=2 root 2 X diagonal 

                               =2 root 2 X 10

                               =20 root 2 cm 



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