∠AFD is an obtuse angle.
∠CFE is a right angle.
Acute angles: ∠AFB, ∠BFC, ∠DFE.
Solution:
An angle which measures less than 90° is called acute angle.
An angle which measures exactly 90° is called a right angle. It is denoted the by symbol "L".
An angle which measures more than 90° is called an obtuse angle.
In the given figure,
∠AFD is an obtuse angle.
∠CFE is a right angle.
Acute angles in the figure is ∠AFB, ∠BFC, ∠DFE.
