17
ABDC is a cyclic quadrilateral and AB=AC.
(5 Points)
If angle ACB = 70°, then angle BDC is equal to
B
С C
D
130
120
150
140
Answers
Answered by
0
Answer:
130 120 150 140 - 70 then angel
Answered by
3
Answer:
140
Step-by-step explanation:
In
AB = AC ABC = ACB = 70o
BAC + 70o+ + 70o = 180o
BAC = 180o - 140o = 40o
ABCD is a cyclic quadrilateral and opposite angles of a cyclic quadrilateral are supplementary
BAC + BDC = 180o
40o+ BDC = 180
BDC = 140o
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