Question

Find the value of the unknown x in the following diagrams
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Answer 1

Answer:

The value of x in both side are

a+b+c=180 (angle sum property)

50+b+b=180 (take b common so remove c and write b)

50+2b=180

2b=180-50

2b=130

B=130/2

B=65

Both x will be 65°

Answer 2

Answer:

The sum of angles in a triangle = 180°

50°+x+x = 180°

2x + 50° = 180°

2x = 180°-50°

2x = 130°

x = 130°/2

x = 65°

Therefore the value of unknown angles x= 65°; x=65°

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