1. State whether the following angles are acute, obtuse, right, straight or reflex:

a.
b.
c.
d.
e.
f.
g.
139°
90°
51°
109°
180°
7°
332°

 

2. Find the value of the variables. Give an abbreviated reason selected from the following list for each answer:

(Adj. ∠ s on st. line are supp. )
(∠ s at a pt. add to 360°. )
(Vert. opp. ∠ s equal. )

 

a.

b.

c.

d.

e.

f.

g.

h.