2 answers:
<h2>x = 80°</h2><h2>--------------------------------</h2>
<u>Step-by-step explanation:</u>
58° + 42° + x = 180° -- (Δ sum property)
100° + x = 180°
x = 180° - 100°
x = 80°
<h2>--------------------------------</h2><h2>FOLLOW ME</h2>
Answer:
80°
Step-by-step explanation:
42° + 58° + x = 180° [Angle sum property of triangle]
=> 100 + x = 180
=> x = 180 - 100
=> <u>x = 80 (Ans)</u>
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