Question

Question 4 of 5
Find the length of side a.


A. 9
B. 34 square root
C. 2
D. 3

Answer 1

The answer is D.3
You would need to set up the pythagorean theorem
a^2+4^2=5^2
next you would have
a^2+16=25
now subtract 16 from both sides and you are left with
a^2=9
now take the square root of both sides
a=3