Fig. 4
d) In Fig. 5.
AOD is alan
LCOA is alan
E
angle
angle.
angle.
ZAOE is alan
LAOE + ZCOA is alan
angle
Fig. 5
Answers
Answered by
3
Answer:
d
Step-by-step explanation:
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Answered by
6
From the figure
(a) ∠AOD is a Right angle
[∵∠AOD=40
o
+20
o
+30
o
=90
o
]
(b) ∠COA is an acute angle
[∵∠COA=20
o
+30
o
=50
o
]
(c) ∠AOE is an obtuse angle
[∵AOE=40
o
+40
o
+20
o
+30
o
=130
o
]
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