Question

Which of the following numbers can be represented directly on the number line (in one step) using Pythagoras Theorem?

• A. $\sqrt{5}$
• B. $\sqrt{3}$
• C. $\sqrt{2}$
• D. $\sqrt{7}$

Answer 1

Answer: (A), (C)

The correct options are
A $\sqrt{5}$
C $\sqrt{2}$

$\sqrt{5}$ can be plotted directly using 1 and 2

Because $1^2+2^2=1+4=5$

$\sqrt{2}$ can be plotted using 1 and 1

Because $1^2+1^2=1+1=2$

So corect answer will be option A and C