Respuesta :

Answer:

b

Step-by-step explanation:

the 2 legs of the triangle are congruent, thus the triangle is isosceles with the 2 base angles congruent , then

3x = 60 ( divide both sides by 3 )

x = 20

alexbob

Answer: b

Step-by-step explanation: the 2 legs of the triangle are congruent, thus the triangle is isosceles with the 2 base angles congruent , then

3x = 60 ( divide both sides by 3 )

x = 20

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