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Find the unknown angle i.e a .
The figure is a square.
Correct answer will be marked as brainlest.
Along with correct explanation
I have posted it thrice
but no answers
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3
Answer:
the figure is a square so angle CXY= 45
and angle YXC = 180-112
angle YXC = 78
so angle A = 180 - 45+78
angle A = 57 degree
here is the answer frnd
Answered by
1
Given :-
∠DXC = 112°
ABCD is a square
AC is the diagonal of the square
DY is a straight line
To Find :-
The unknown angle ' a '
Solution :-
Since ABCD is a square,
therefore, ∠C = 90°
(property of a square)
Since AC is the diagonal,
=> ∠DCX and ∠YCX = 45°
(Since, Diagonal bisects an angle in equal parts)
DY is a straight line (Given)
=> ∠DXC + ∠YXC = 180°
(Linear Pair)
=> 112° + ∠YXC = 180°
=> ∠YXC = 180° - 112°
=> ∠YXC = 68°
In ∆ CXY :-
∠YCX + ∠YXC + ∠a = 180°
=> 45° + 68° + ∠a = 180°
=> 113° + ∠a = 180°
=> ∠a = 180° - 113°
=> ∠a = 67°
Required answer = 67°
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