Maths-
General
Easy

Question

Given that ∠E ≅ ∠H . Are lines l and m parallel? Explain why or why not.

The correct answer is: If we are given that ∠E ≅ ∠H for the given diagram, it would be sufficient information to prove that lines l and m are parallel to each other


    Hint:-
    1. Parallel lines- 2 co-planar lines that are equidistant from each other are called Parallel lines. Parallel lines never intersect each other.
    2. Transversal- A line that crosses 2 co-planar lines at 2 distinct points is called a transversal.
    3. Alternate Exterior Angles- angles formed on the outer side of a 2 lines and on the opposite sides of the transversal are called Alternate Exterior Angles.
    4. When 2 parallel lines are intersected by a transversal, Alternate Exterior Angles are equal.

    Step-by-step solution:-
    In the given diagram, we need to prove that-
    Line l is parallel to line m.
    Now, ∠E and ∠H are given, which are formed on the opposite sides of the transversal and on the outer side of the lines l & m.
    Hence, ∠A and ∠B are Alternate Exterior Angles.
    Now, we know that Alternate Exterior angles formed between 2 lines are equal when the 2 lines are parallel to each other.
    Hence, the 2 lines l & m are parallel to each other if ∠E ≅ ∠H.
    Final Answer:-
    ∴ If we are given that ∠E ≅ ∠H for the given diagram, it would be sufficient information to prove that lines l and m are parallel to each other.

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