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ABCD is a cyclic quadrilateral with diagonal AC. ∠ BAC… | StemPy Lab
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ABCD is a cyclic quadrilateral with diagonal AC. ∠ BAC = 41° and ∠ ADB = 28°. What is ∠ ADC?
Mathematics
Hard
High School (9–10)
General
Geometry › Circles
Olympiad
SAT
Created by
StemPy Lab
A
B
C
D
ABCD
A
B
C
D
is a cyclic quadrilateral with diagonal
A
C
AC
A
C
.
∠
B
A
C
=
41
∘
\angle BAC = 41^\circ
∠
B
A
C
=
4
1
∘
and
∠
A
D
B
=
28
∘
\angle ADB = 28^\circ
∠
A
D
B
=
2
8
∘
. What is
∠
A
D
C
\angle ADC
∠
A
D
C
?
111
∘
111^\circ
11
1
∘
79
∘
79^\circ
7
9
∘
69
∘
69^\circ
6
9
∘
28
∘
28^\circ
2
8
∘
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