find the missing side

Answer:
7) 8.94
8) 6.71
Step-by-step explanation:
for both questions, use pythagorean theorem
[tex]a^{2} + b^{2} = c^{2}[/tex]
Question 7:
[tex]4^{2} + 8^{2} = c^{2}[/tex]
16 + 64 = [tex]c^{2}[/tex]
80 = [tex]c^{2}[/tex]
[tex]\sqrt{80} = \sqrt{c^{2}}[/tex]
c = 8.94
Question 8:
[tex]6^{2} + 3^{2} = c^{2}[/tex]
36 + 9 = [tex]c^{2}[/tex]
45 = [tex]c^{2}[/tex]
[tex]\sqrt{45} = \sqrt{c^{2} }[/tex]
c = 6.71