Respuesta :

wilenemarais1

Answer:

y=90⁰

Step-by-step explanation:

● 180⁰-110⁰=70⁰ (lines on a straight line)

70⁰+70⁰+x+x= 180⁰( sum of a triangle=180⁰)

2x=40⁰

x=20⁰

● 70⁰+20⁰+y=180⁰(sum of a triangle =180⁰)

y=180⁰-90⁰

y=90⁰

umairkazi924

Angles of the triangle:

angle1 = 70°

angle2 = (x + x)°

angle3 = (180 - 110)°

By angle sum property of a triangle,

angle1 + angle2 + angle3 = 180°

Therefore,

70 + (x + x) + (180 - 110) = 180

70 + 2x + 70 = 180

140 + 2x = 180

2x = 180 - 140

2x = 40

x = 40/2

x = 20

Hence, x = 20°

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