Answer:
2 square root of 13 i think
Step-by-step explanation:
im not sure if i remember clearly but i think we have to use:
a^2 + b^2 = c^2
sooo
(4)^2 + (6)^2 = c^2
16 + 36 = c^2
52 = c^2
then since theres no exact number for sq rt of 52 we think if it can be divided by other numbers like 4 16 etc.
since it can get 4 out, its not 4 sq rt of 13 its 2 sq rt of 13 because you have to square the 4 to take it out
2 square root of 13 i think
