D. Because a number is irrational if it doesn't terminate or if it repeats over and over
The angle is called an hypotenuse and to find it just use the Pythagorean Theorem which states a squared+b squared= c squared, does this answer your question or do you need more help?
Answer:
2
Step-by-step explanation:
A conjuate is real numbers like the conjuate of x and y would be a real number
