Answer:
Hello! I believe your answer is a = 3
Step-by-step explanation:
a= [tex]\sqrt{5^{2}-4^{2} }[/tex] = 3
Have a good day! - Zac
Answer: 3
Step-by-step explanation: Use the pythagorean theory!!!
a^{2} +4^{2}=5^{2}
a^{2}=5^{2}-4^{2}
a^{2} =25-16
a^{2}=8 square root both sides √
a=2.8=3
