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find the measure of angle y

Find The Measure Of Angle Y class=

Sagot :

ISOSCELES TRIANGLE

An isosceles triangle is a triangle that has two sides of equal length. In this exercise, we see small lines on two of the sides. This means that those sides are equal.

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Equalize the expressions:

6x - 23 = 4x + 9

Add 23 to both sides of the equation:

6x - 23 + 23 = 4x + 9 + 23

‎      ‏‏‎‎      ‏‏‎‎    6x = 4x + 32

Substract 4x from both sides:

6x - 4x = 4x - 4x + 32

    ‏‏‎‎  2x = 32

Finally, divide both sides by 2:

[tex]\mathsf{\dfrac{2x}{2} = \dfrac{32}{2}}[/tex]

[tex]\large{\boxed{\mathsf{x = 16}}}[/tex]

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Now, let's find the measures of the angles:

  • (6x - 23)° = 6(16) - 23 = 96 - 23 = 73°
  • (4x + 9)° = 4(16) + 9 = 64 + 9 = 73°

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Remember: The sum of the three angles of any triangle is equal to 180 degrees. Let's find the measure of the angle Y:

73° + 73° + Y = 180°

146° + Y = 180°

Y = 180° - 146°

Y = 34°

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Answer. m∠Y = 34°

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Answer:

34

Step-by-step explanation:

I did the test

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