5)In ABC LA + LB = 125° then LC is equal to A) 80° B) 70° C) 100 D) 110°
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Step-by-step explanation:
Sum of all angles in any triangle is 180 degrees
therefore,
LA + LB + LC =180 --(1)
given,
LA + LB = 125 -- (2)
By substituting (2) in (1), we get
=>125 + LC = 180
=> LC =180-125
=>LC =55 degrees
But 55 is not there in the option, can you pls confirm the options ..
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