in fig, find x,y
Can anyone explain with full steps and explanation
Answers
Correct Question -
Find the values of angle x and angle y in the above figure .
Solution -
In the above figure, -
In Triangle CDE -
Angle DCE = 25°
Angle CDE = 27°
Let the third angle , Angle DEC be k°
According to Angle Sum Property Of A Triangle ,
We know that sum of all angles of a triangle = 180°
Therefore Angle DCE + Angle CDE + Angle DEC = 180°
Substuting the given Values -
=> 25° + 27° + k° = 180°
=> k° + 52° = 180°
=> k ° = 128 °
Now, In line AC -
Angle AED and angle DEC form a linear pair .
Hence they are supplementary angles i.e, add up to 180°
So,
k° + x° = 180°
=> x° = 180° - 128 ° = 52° ........... [ A 1 ]
Now in the above figure, lines BC and DE see parallel to each other .
So,
Angle ADE and Angle ABC are equal as they are corresponding angles .
So,
Angle ADE = 68°
Now, in triangle ADE -
We have the values of Angle AED and Angle ADE
So,
y° + 52° + 68° = 180°
=> y° + 120° = 180°
=> y = 60° ............ [ A 2 ]
Answer:
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