Question

For which of the following figures, all angles are equal?

• A. Rectangle
• B. Kite
• C. Trapezium
• D. Rhombus

Answer 1

The correct option is A

Rectangle

Explanation for the correct answer

1. A rectangle is a type of quadrilateral that has its parallel sides equal to each other and all four angles are equal to $90°$.
2. Thus, it is also called an equiangular quadrilateral.

Explanation for the incorrect options:

Option B:

1. A kite is a quadrilateral whose adjacent sides are equal.
2. Only one pair of angles are equal.

Hence option B is incorrect.

Option C:

1. A trapezium is a quadrilateral whose only pair of opposite sides are parallel.
2. None of its angles are equal to each other except in the special case when the non-parallel sides are mirror images of each other.
3. In that case, adjacent angles with the parallel side as the common arm are equal.

Hence, option C is incorrect.

Option D:

1. A rhombus is a quadrilateral whose all four sides are equal.
2. Its opposite angles are equal.

Hence, option D is incorrect.

Hence, option A is correct.