we can use pythagorean identieis
remember that 
also remember that
and 
so if we take
and divide both sides by
we get



subtracting
from both sides

now subsitute into original problem



the answer is -1
Answer:
36
Step-by-step explanation:
180-144=36
I think it is 2,25 I times in the cacutar and got 2.25