Question

please help:(( thank you so much

Answer 1

by pythgoras theorem,

y²=12²+8²=144-64=80

y=root 80=8.94

Answer 2

It an application of "PYTHAGORAS THEOREM".

$\red{ \boxed{{ a}^{2} = {b}^{2} + {c}^{2}} }$

Where

• $\sf ''a'' \:is\: hypotenuse$
• $\sf''b'' \: and \: ''c'' \: are \: other \: two \: sides.$

$\implies {12}^{2} = {8}^{2} + {y}^{2}$

$\implies 144 = 64 + {y}^{2}$

$\implies {y}^{2} = 144 - 64$

$\implies {y}^{2} = 80$

$\implies y = \sqrt{80}$

$\orange{ \therefore y = 4 \sqrt{5} }$