a yield sign
The hands of a clock at 5 to 12
A right angle triangle always has 2 acute angles within it.
One example I know is an ice cream cone.
An acute angle can be found in the shape of a corner in a room, where two walls meet to form an angle that measures less than 90 degrees.
A roof (:
An angle formed as a see-saw is a real life example.
cycle foces
a wooden gate
Roof of a house
blinds or window panes
2 o'clock on a wristwatch.