Step-by-step explanation:
square root 15 = irrational
square root 16 = 4 = rational
square root 21 = irrational
square root 22 = irrational
Answer:
6
Step-by-step explanation:
2,400 divided by 400 = 6
Answer:
70
Step-by-step explanation:
it's just simple math. hope this helped have a food day
Answer:
a rightangle triangle
Step-by-step explanation:
because 72+18=90 degrees
when a side is 90 degrees in a triangle, it is right-angled.
hope this helps you!!