Question

what is the value of d​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

2a+2b+55°=180°(angle sum property of triangle)

2a+2b=180°-55°

2(a+b) =125°

a+b=62.5°.....eq(1)

d+a+b=180°

d+62.5°=180°(putting value of a + b from eq1)

d=180°-62.5°

d=117.5° (ANSWER)