Question

Calculate the value of x
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Answer 1

Answer:

here

x=180-(60+45)

180-105

75 degree

Step-by-step explanation:

if BA||DC

angel A=angle D

in triangle EDC

E+D+C=180

E=x=75 degree

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Answer 2

Answer:

‹A + ‹D = 180 ° (Interior angles of parallel lines)

‹A + ‹D = 180 ° (Interior angles of parallel lines)=>‹D =180° - 60° = 120°

x° + 45° = 120° (Exterior angle of a triangle is equal to the sum of opposite interior angles)

=> x = 120° - 45° = 75°

Therefore the required answer is

x = 75°

Hope this helps you...