Step-by-step explanation:
apply Pythagorean theorem. if a^2 + b^2 = c^2 then
b = √(15^2 - 9^2) = 12.
12 is answer
Haha me don’t know sorry okay
Answer: Its D :)
Step-by-step explanation:
Answer:
it is irrational,because the product of an irrational number and a non zero rational number is irrational
