Your ds game?!?
The answer depends on the house!
Chair
An acute angle. You can remember it by thinking acute because it is small and cute.
Acute angles are angle less than 90 degrees. They are very important for things like construction.
bulletin boards are one example.
The shape of the tip of a pencil could be an example.
acute means <90 90 being the angle on squares so... pencil, pen, knife, fingernail clippers, etc...
Anything that is greater than 0 degrees but less than 90 degrees.
acute
A triangle with 3 acute angles is an acute triangle. All the angles in an acute triangle are acute.
1 acute angle = 1 acute angle