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Two parallel lines $l$ and $m$ cut by a transversal $t$. If the interior angles of the same side of $t$ be $(2 x-8)°$ and $(3 x-7)°$, find the measure of each of these angles.
Given :
The lines l and m are parallel and t is the transversal.
The interior angles on the same side of the transversal are $(2 x-8)°$ and $(3 x-7)°$.
To do :
We have to find each of the angles.
Solution :
We know that,
The sum of the interior angles on the same side of the transversal is 180°.
$(2 x-8)° + (3 x-7)° = 180°$
$2x + 3x -15° = 180°$
$5x = 180° + 15°$
$5x = 195°$
$x = \frac{195}{5} = 39°$
$2x -8 = 2(39) - 8 = 78 - 8 = 70°$
$3x-7 = 3(39)-7 = 117-7=110°$
Therefore, the measure of the angles are 70° and 110°.
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