Question

Identify acute, right, obtuse and reflex angles
(i) $\angle$A
(ii) $\angle$B +$\angle$C
(iii) $\angle$D
(iv) $\angle$D+$\angle$A+$\angle$B

Answer 1

(i) $\angle$A is an obtuse angle.
(ii) $\angle$B +$\angle$C is a straight angle
(iii) $\angle$D is an acute angle.
(iv) $\angle$D+$\angle$A+$\angle$B is a reflex angle