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Answer: A parallelogram with at least one right angle
Step-by-step explanation:
A Parallelogram with at least one right angle
What is rectangle?
A rectangle is a closed two-dimensional figure with four sides. The opposite sides of a rectangle are equal and parallel to each other and all the angles of a rectangle are equal to 90°. Observe the rectangle given below to see its shape, sides and angles.
Properties of a Rectangle
A rectangle is a closed figure which has four sides and the angle formed by adjacent sides is 90°. A rectangle can have a wide range of properties. Some of the important properties of a rectangle are given below.
- A rectangle is a quadrilateral.
- The opposite sides of a rectangle are equal and parallel to each other.
- The interior angle of a rectangle at each vertex is 90°.
- The sum of all interior angles is 360°.
- The diagonals bisect each other.
- The length of the diagonals is equal.
- The length of the diagonals can be obtained using the Pythagoras theorem. The length of the diagonal with sides a and b is, diagonal = √( a2 + b2).
- Since the sides of a rectangle are parallel, it is also called a parallelogram.
- All rectangles are parallelograms but all parallelograms are not rectangles.
A parallelogram have opposite side equal and parallel.
Also, if a parallelogram have one of its angle right angle then it can show the property of rectangle.
Hence, the Parallelogram with at least one right angle can be rectangle.
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