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Jerry tries to find the measure of
∠
ABC
. His work is shown. Which statement describes Jerry's error?
The picture shows a circle with a center O. Two chords, BA and BC are drawn from the same internal point, B. The angle of A is 135 degrees and C is 119 degrees.
m
∠
ABC
=
1
2
[
360
∘
−
(
135
∘
−
119
∘
)
]
=
1
2
(
360
∘
−
16
∘
)
=
1
2
(
344
∘
)
=
172
∘
Jerry should have added
135
∘
and
119
∘
.
Jerry should have multiplied by 2.
Jerry should not have subtracted from
360
∘
.
Jerry should not have multiplied by
1
2
.
Sagot :
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