If the perimeter of a square is 80 cm, then what is the diagonal of the square (in cm)?
Let side of square = $$s$$ cm
=> Perimeter = $$4s=80$$
=> $$s=\frac{80}{4}=20$$ cm
Thus, diagonal = $$d=\sqrt{s^2+s^2}$$
=> $$d=s\sqrt2$$
=> $$d=20\sqrt2$$ cm
=> Ans - (A)
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
