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Rectangle Calculator
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Rectangle Calculator is used to find the area, perimeter and polygon diagonals of a rectangle.

A rectangle is any quadrilateral with a four right angles and all four interior angles are 90 degrees.

## Step by Step Calculation

Step 1 :

Formulas:

Area of rectangle = a * b

Perimeter of a rectangle = 2a + 2b

Polygon diagonals of rectangle = $\sqrt{a^{2}+b^{2}}$

Where,

'a' and 'b' = side length

A = Area of rectangle

P = Perimeter of rectangle

p = q = Polygon diagonals of rectangle

Step 2 :

Put the values in the formula and calculate it further.

## Example Problems

1. ### The side length of the rectangle is 4 cm and 6 cm. Find area, perimeter and polygon diagonals of a rectangle.

Step 1 :

Given:

a = 4 cm

b = 6 cm

Formulas:

Area of rectangle = a * b

Perimeter of a rectangle = 2a + 2b

Polygon diagonals of rectangle = $\sqrt{a^{2}+b^{2}}$

Step 2 :

Put the values in the formula and calculate it further.

Area of rectangle = 4 * 6

= 24 cm2

Perimeter of rectangle = 2 * 4 + 2 * 6

= 8 + 12

= 20 cm

Polgon diagonals of a rectangle = $\sqrt{4^{2}+6^{2}}$

= 7.211 cm

Area of rectangle = 24 cm2

Perimeter of rectangle = 20 cm

Polygon diagonals of a rectangle = 7.211 cm

2. ### The side length of the rectangle is 11 m and 14 m. Find area, perimeter and polygon diagonals of a rectangle.

Step 1 :

Given:

a = 11 m

b = 14 m

Formulas:

Area of rectangle = a * b

Perimeter of a rectangle = 2a + 2b

Polygon diagonals of rectangle = $\sqrt{a^{2}+b^{2}}$

Step 2 :

Put the values in the formula and calculate it further.

Area of rectangle = 11 * 14

= 154 m2

Perimeter of rectangle = 2 * 11 + 2 * 14

= 22 + 28

= 50 m

Polgon diagonals of a rectangle = $\sqrt{11^{2}+14^{2}}$

= 17.80 m

Area of rectangle = 154 cm2

Perimeter of rectangle = 50 m

Polygon diagonals of a rectangle = 17.80 m

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