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If the sum of a pair of opposite angles of a quadrilateral is 180o, the quadrilateral is:
  • a)
    square
  • b)
    Rhombus
  • c)
    Parallelogram
  • d)
    Cyclic
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the sum of a pair of opposite angles of a quadrilateral is 180o, th...
Opposite angles in a quadrilateral

A quadrilateral is a polygon with four sides and four angles. In any quadrilateral, there are two pairs of opposite angles - angles that are across from each other and do not share a side. The sum of these two opposite angles is 180 degrees.

Explanation of the options

Let's analyze each option to determine which one satisfies the given condition.

Square:
A square is a quadrilateral with all four sides equal in length and all four angles equal to 90 degrees. In a square, opposite angles are equal, but their sum is not 180 degrees. Therefore, a square does not meet the given condition.

Rhombus:
A rhombus is a quadrilateral with all four sides equal in length, but its angles can vary. In a rhombus, opposite angles are not necessarily equal, and their sum is not always 180 degrees. Therefore, a rhombus does not meet the given condition.

Parallelogram:
A parallelogram is a quadrilateral with opposite sides parallel and equal in length. In a parallelogram, opposite angles are equal, but their sum is not necessarily 180 degrees. Therefore, a parallelogram does not meet the given condition.

Cyclic:
A cyclic quadrilateral is a quadrilateral that can be inscribed in a circle. In a cyclic quadrilateral, opposite angles are supplementary, which means their sum is always 180 degrees. Therefore, a cyclic quadrilateral satisfies the given condition.

Conclusion

Based on the analysis, the only option that meets the condition of having opposite angles with a sum of 180 degrees is a cyclic quadrilateral. Therefore, the correct answer is option 'D'.
Free Test
Community Answer
If the sum of a pair of opposite angles of a quadrilateral is 180o, th...
A quadrilateral is called cyclic if all the four vertices of it lie on a circle and the sum of either pair of opposite angles of a cyclic quadrilateral is 180.
Here,∠1+∠2=180
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If the sum of a pair of opposite angles of a quadrilateral is 180o, the quadrilateral is:a)squareb)Rhombusc)Parallelogramd)CyclicCorrect answer is option 'D'. Can you explain this answer?
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