Question

Pleasee help asap....

Answer 1

Answer:

$\sqrt{7} ^{2} + 2^{2} = {x}^{2} \\7 + 4 = {x}^{2} \\ 11 = {x}^{2} \\ x = \sqrt{11} \\ x = 3.316cm$

Answer 2

Answer:

$\sqrt{11}$

Step-by-step explanation:

$\sqrt{7}^2+2^2=x^2$

the square roots will cancel

$7+4=x^{2}$

to get x alone

$\sqrt{11} =\sqrt{x} ^2$

the square roots will cancel leaving just the square root of 11