in a parallelogram ABCD, ∆ A = 60° then find measure of ∆c ?
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Answered by
3
Answer:
c=60
b, d=120
I hope you understand this is answer
Answered by
0
Step-by-step explanation:
∠A=60
o
, therefore the opposite angle C=60
o
∠B=∠D [Rule of parallelogram] as they are opposite angles.
Let ∠B and ∠D be x
⇒x+x+∠A+∠B=360
o
[ sum of all sides of a polygon ]
⇒2x+60
o
+60
o
=360
o
⇒2x=240
o
⇒x=120
o
∴∠D=120
o
Hence, the answer is 120
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