SOLUTION: What is the value of y? Enter your answer in the box. y = An isosceles triangle with vertices labeled A, B, and C. Side B C is the base. Sides A B and A C are equal. S

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Question 1103272: What is the value of y?

Enter your answer in the box.
y =
An isosceles triangle with vertices labeled A, B, and C. Side B C is the base. Sides A B and A C are equal. Sides A B and A C are labeled with single tick marks. Angle A is labeled as left parenthesis 4 y plus 10 right parenthesis degrees, angle B is labeled as 75 degrees, and angle C is labeled as left parenthesis 3 x right parenthesis degrees.

Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
If using A, B, C, as variables for the measure of the corresponding interior angles, and A is the vertex point, B and C are the base angles, triangle isosceles, then:


Angle mesures at B and C are equal (base angles of isosceles triangle).




What about A?
Both B and C each is 75 degrees.
, sum of interior angles of any triangle;



and you wer given an expression for measure of angle A.



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