Answer:
obtuse angle
Step-by-step explanation:
as it is angle 1 is greater than 90
6/9 is the equivalent of 2/3, so what is 2/3 times 12? This will give you the answer. I hope this helps, have a nice day! :)
You divide both top and bottom by 18 leaving the numerator 1 and the denominator 10
So 18/180 = 1/10
By dividing it is how you do it