Question

Classify the angles whose magnitudes are given below:
(i) 30°
(ii) 91°
(iii) 179°
(iv) 90°
(v) 181°
(vi) 360°
(vii) 128°
(viii) (90.5)°
(ix) (38.3)°
(x) 80°
(xi) 0°
(xii) 15°

Answer 1

(i) Acute angle
This is because its measure is less than 90$°$ but more than 0$°$.
(ii) Obtuse angle
This is because its measure is more than 90$°$ but less than 180$°$
(iii) Obtuse angle
This is because its measure is more than 90$°$ but less than 180$°$.
(iv)Right angle
This is because its measure is 90$°$.
(v) Reflex angle
This is because its measure is more than 180$°$ but less than 360$°$.
(vi) Complete angle
This is because its measure is 360$°$.
(vii) Obtuse angle
This is because its measure is more than 90$°$ but less than 180$°$.
(viii) Obtuse angle
This is because its measure is more than 90$°$ but less than 180$°$.
(ix) Acute angle
This is because its measure is more than 0$°$ but less than 90$°$.
(x) Acute angle
This is because its measure is more than 0$°$ but less than 90$°$.
(xi) Zero angle
This is because its measure is zero.
(xii) Acute angle
This is because its measure is more than 0$°$ but less than 90$°$.