If ∠XYZ = 40∘, then, ∠XYZ is a/an ___ angle.
An Acute angle is an angle which is greater than 0∘ and less than 90∘. The given angle is 40∘ which is greater than zero and less than 90 degrees. Therefore, it is an acute angle.
If ∠XYZ = 90∘, ∠XYZ is also known as a/an ___ angle.
△XYZ is constructed such that XY = 8.5 cm, YZ = 5.5 cm and ∠Y = 40∘. Then △XYZ is an isosceles triangle.