Question

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Answer 1

Answer:

a) we know that (adjacent sides are equal)

so let the another angle be

angle 1 (all sides of a triangle is equal to 180°)

angle 1 = 75° (because they are adjacent angles)

so therefore it becomes

180°=75°+75°+x

30=x

(x=30)

Step-by-step explanation:

b) let the another angle be angle 1

and angle 2=120°

angle 1=angle 2(120°)-180°

angle 1=60°

angle 1=60° so x also is 60° (adjacent angles)

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