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A Rectangle is a plane figure with four straight sides and four right angles, one with unequal adjacent sides, in contrast to a square. Every angle of rectangle is a right angle (900).

Calculate the area, perimeter of Rectangle(Rectangle Calculator)

Formula

**Area of Rectangle = **b*h

**Perimeter of Rectangle = **2(b) + 2(h)

**where**,

b = base, h = heigth

**Area of Parallelogram =** b×h

**Perimeter of Parallelogram =** 2(b) + 2(h)

**where,**

b = breadth, h = height

A** rectangle** is defined as a quadrilateral where all four of its angles are right angles.

The opposite sides are parallel and congruent.

The diagonals bisect each other.

The diagonals are congruent.

A **rectangle ** is also a **parallelogram.**

**Examples:**

Find the area and perimeter of a rectangle for the breadth 4 and the height 5.

**Step 1:** Find the area.

**Area** = b×h = 4×5 = **20**

**Step 2:** Find the perimeter.

**Perimeter **= 2(b) + 2(h) = 2(4) + 2(5) = 8 + 10 = **18**.