An obtuse angle is formed by two adjacent angles with measures (x−5)°

and (3x)°
. If the resulting angle measure is 107°
, what is the angle measure of each of the two unknown angles? Round to the nearest whole number.(1 point)
Responses

28°
and 79°
28 degrees and 79 degrees

23°
and 84°
23 degrees and 84 degrees

32°
and 75°
32 degrees and 75 degrees

20°
and 87°

1 answer

To find the measures of the two angles, we first set up the equation based on the information provided. The two angles are \((x - 5)^\circ\) and \((3x)^\circ\), and their sum is equal to \(107^\circ\).

We can write the equation as:

\[ (x - 5) + (3x) = 107 \]

Combining like terms gives:

\[ 4x - 5 = 107 \]

Next, we add 5 to both sides:

\[ 4x = 112 \]

Now, we divide by 4:

\[ x = 28 \]

Now that we have the value of \(x\), we can find the measures of the two angles:

  1. First angle: \(x - 5 = 28 - 5 = 23^\circ\)
  2. Second angle: \(3x = 3(28) = 84^\circ\)

Thus, the measures of the angles are \(23^\circ\) and \(84^\circ\).

The answer is:

23° and 84°