ANSWER ASAP GIVING BRAINLIEST FIVE STARS AND A HEART I ONLY NEED A FEW SENTENCES! Please answer the following essay question: An

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ANSWER ASAP GIVING BRAINLIEST FIVE STARS AND A HEART I ONLY NEED A FEW SENTENCES!
Please answer the following essay question:
An isosceles triangle has two congruent angles. Write an expression to represent the measure of the third angle of the triangle. Explain.

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Neala 3 years 2021-07-20T14:38:21+00:00 2 Answers 11 views 0

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  1. vankhanh
    0
    2021-07-20T14:39:50+00:00
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    Step-by-step explanation:

    Let x be the size of 1 of the 2 congruent angles.

    The size of the other congruent angle is also x.

    Since sum of angles in a triangle = 180°,

    Measure of 3rd angle in the triangle

    = 180° – 1st angle – 2nd angle

    = (180 – 2x)°.

  2. Edana
    0
    2021-07-20T14:40:18+00:00
    Reply

    Answer:

    The Isosceles Triangle Theorem, All interior angles of a triangle add up to 180 degrees. Basically the equation would be (angle 1) + (angle 2) + (angle 3) = 180. whichever angle you dont have you replace with x and solve for it. For example if you had a triangle with two congruent angles of 36 then it would be 36+36+x=180 and you would solve it like any other equation eventually showing you that x = 108. it also works backwards if you are trying to solve for the 2 missing congruent angles.

    Step-by-step explanation:

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