A right angle triangle always has 2 acute angles within it.
One example I know is an ice cream cone.
blinds or window panes
An Obtuse angle is more than 90° but less than 180°. Real life examples would be fans, and most rooftops of houses and buildings.
people playing sports-angle of legs, arm, ect
A real life example of a right-angled triangle would be a ladder leaning against a wall. And a acute triangle is an example of a umbrella. Some types of an umbrella are divided into a few sections using triangles edit by: A.B
a yield sign
The hands of a clock at 5 to 12
pizza slice, alphabet A etc.
One example I know is an ice cream cone.
a pizza slice yumm!(;
the top angle of an A
A roof (:
An angle formed as a see-saw is a real life example.
cycle foces
Roof of a house
a wooden gate
blinds or window panes