Question

please do this if you know with steps ,I will mark you brainliest​

Answer 1

Step-by-step explanation:

I have attached the solution

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Answer 2

Step-by-step explanation:

12 ) given angle 1 = 60⁰

angle 5 = 180⁰ - 60⁰ ( linear pair )

= 120⁰

angle 5 and angle 7 are corresponding angles and they are equal,

therefore angle 7 = 120⁰

angle 7 and angle 4 are vertically opposite angles and they are equal, therefore angle 4 = 120⁰

13 ) 50⁰ + 60⁰ + y = 180⁰ ( angle sum property if triangle)

110⁰+ y = 180⁰

y = 180⁰-110⁰

y = 70⁰

the exterior angle properly says that the measure of one exterior angle is equal to the sum of two opposite interior angles. thus,

x = 70⁰+50⁰

x = 120⁰