Respuesta :

Answer:

55°

Step-by-step explanation:

the sum of the interior angles in a triangle is 180°

the triangle is isosceles = 2 congruent side (5 and 5) anf 2 congruent angles x and x₁

(180 - 70) : 2 =

110 : 7 = 55°

or

180 - 70 - 2x = 0

110 = 2x

x = 55°

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70 + 55 + 55 = 180°

the answer is good