Ahinged lid opens 89 degrees. what type of angle is formed by the open lid?

The hinged lid created a acute angle

any angle that measures less than 90 is a acute angle
any angle that measures 90 is right angle
any angle that measures more than 90 is obtuse angle 

90 being 90 degrees

hope this helps

No i refuse to tell you the answer but the estimate is 10

7days is 168 hours in decimal form it is just 168 there is no decimal form for this because it is like 168.0 and there is no number you are dividing it by for it to be a decimal.hope this