Question

What is the length of segment AB?
A) 3
B) Square root of 20
C) Square root of 41
D) 9

Answer 1

C

You can use the pythagorean theorem.

5^2+4^2 =c^2 (or length of AB in this case)

25+16=c^2
41=c^2
c (or length of AB) = sqrt 40