Answer:
31.15
Step-by-step explanation:
[tex]a^{2} [/tex] + [tex]b^{2} [/tex] = [tex]c^{2} [/tex]
[tex]12.6^{2} [/tex] + [tex]b^{2} [/tex] = [tex]33.6^{2} [/tex]
158.76 + [tex]b^{2} [/tex] = 1128.96
-158.76. -158.76
[tex]b^{2} [/tex] = 970.2
[tex]\sqrt{b} [/tex]. =[tex]\sqrt{970.2} [/tex]
b = 31.15 (rounded)
