in the following figure DPSE and KLMN are parallelograms. find the angle x
Answers
Answer:
The angle x is acute angle
Step-by-step explanation:
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Answer:
50°
Step-by-step explanation:
[Please refer to figure attached. I have made slight modifications for you to understand better]
Given,
DPSE and KLMN are parallelograms.
∠D = 120°
∠M = 70°
[Let the intersecting point be O]
∠KOP = x
Now in parallelogram DPSE, ∠P is adjacent to ∠D.
In a parallelogram, the adjacent angles are supplementary to each other.
So, ∠P + ∠D = 180°
=> ∠P + 120° = 180° [from given data]
=> ∠P = 180° - 120° = 60°.............................................[equation 1]
Similarly in parallelogram KLMN, ∠K is opposite to ∠M.
In a parallelogram, the opposite angles are equal.
So, ∠K = ∠M
∠M = 70° [from given data]
So,
∠K = 70°.............................................[equation 2]
Now, consider Δ OPK
By angle sum property, ∠OKP + ∠OPK + ∠KOP = 180°
From equations 1 and 2 and given data,
70° + 60° + x = 180°
=> x = 180° - (60° + 70°)
=> x = 180° - 130° = 50°