The area of a square is 144 sq cm. Find the length of its diagonal

a

11\(\sqrt{3cm}\)

b

12cm

c

12\(\sqrt{2cm}\)

d

13cm

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Correct Option
c

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Discussions (4)

TheGuru
3 years ago

Simple formula:
D = a√2
Where D = diagonal, a = length of side of the square.
So all you have to do now is to find "a"
Area of a square A = a²
Therefore 144 = a²
a = 12
Therefore D = 12√2cm

abdulsalam.saliu
4 years ago

Please i do not understand the solution that Myschool has provided here. Please can i get another.

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