Math, asked by helo52, 3 months ago

An angle measures 20° less than the measure of its complementary angle. What is the measure of each angle​

Answers

Answered by DILhunterBOYayus
8

Answer:

The angle measure is \blue{\bold{35°~and~55°}}

Step-by-step explanation:

\rightsquigarrow Complementary angles in geometry are angles that summate to exactly 90 degrees.

\rightsquigarrow If an angle measures 20 degrees less than the measure of its complementary angle, we can create an equation to find the measure of this angle.

\rightsquigarrow The complementary angle is going to equal 90 - x, so this becomes a term in our equation: (90 - x)

\rightsquigarrow Both angles need to add up to 90 degrees, so we can set up this equation:

x = (90 - x) - 20, where x is our unknown angle.

\rightsquigarrow Now, we can just solve for x.

\begin{gathered}x = (90-x)-20\\\\x = 90 - x - 20\\\\x = 70 - x \\\\2x = 70\\\\\bold{x = 35}\end{gathered}

\rightsquigarrow Therefore, the angle that measures 20 degrees less than its complementary angle is 35°.

\rightsquigarrow We can check this by using substitution:

\begin{gathered}90 = x + 35\\\\55 = x \implies  x = 55\\\\  so~55 - 35 = 20\end{gathered}

  • \rightsquigarrow Therefore, the two angles are 55° and 35°, but the angle that measures 20° less than the measure of its complementary angle is 35°.
Answered by unicornhelps
0

The angle measure is 35°.

Step-by-step explanation:

Complementary angles in geometry are angles that summate to exactly 90 degrees. If an angle measures 20 degrees less than the measure of its complementary angle, we can create an equation to find the measure of this angle.

The complementary angle is going to equal 90 - x, so this becomes a term in our equation: (90 - x)

Both angles need to add up to 90 degrees, so we can set up this equation:

x = (90 - x) - 20, where x is our unknown angle.

Now, we can just solve for x.

\begin{gathered}\begin{gathered}x = (90-x)-20\\\\x = 90 - x - 20\\\\x = 70 - x \\\\2x = 70\\\\\bold{x = 35}\end{gathered}\end{gathered}

x=(90−x)−20

x=90−x−20

x=70−x

2x=70

x=35

Therefore, the angle that measures 20 degrees less than its complementary angle is 35°. We can check this by using substitution:

\begin{gathered}\begin{gathered}90 = x + 35\\\\55 = x \implies x = 55\\\\ so~55 - 35 = 20\end{gathered}\end{gathered}

90=x+35

55=x⟹x=55

so 55−35=20

Therefore, the two angles are 55° and 35°, but the angle that measures 20° less than the measure of its complementary angle is 35°.

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