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Friday, 03 April 2026
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From the diagram above, which of the following is true?



From the diagram above, which of the following is true?
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  • A A +b + x =180
  • B A = b + x
  • C A – b = 180 - x
  • D A + b = x + 180
  • E A – b = x - 180.
Correct Answer: Option D
Explanation:
From the diagram, the angles in the triangle are:
(180 - a)°, (180 - b)° and x°.
\(\therefore\) (180 - a) + (180 - b) + x = 180°
360 + x - a - b = 180°
360 - 180 + x = a + b
180 + x = a + b.

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