# Area of a quadrilateral Calculator

## Calculates the area and perimeter of a quadrilateral given four sides and two opposite angles. | ||

- Purpose of use
- Calculating area regarding how much compost needed to cover it.

- Purpose of use
- needed to calculate the sq ft of a sloping retaining wall on an incline. Seven walls in total.
- Comment/Request
- Before using this "tool", I measured height of both ends and the middle of each wall and multiplied by length. With this formula, I saved over 15 sq. ft. of material from my initial calculation.

- Purpose of use
- Land lot area calculation with unequal lengths
- Comment/Request
- Very useful

- Purpose of use
- Calculate irregular lot size accurately for sales and marketing records

- Purpose of use
- Needed to calculate area for re-sod.
- Comment/Request
- Qaudrilateral is tricky and needed sq footage to order material, yard waste, and labor. Great tool! Thanks!

- Purpose of use
- Used to calculate a patio area and lawn area in our back garden.
- Comment/Request
- Excellent tool. Thank you.

- Purpose of use
- Land area calculation
- Comment/Request
- Providing the answer in acreage would be helpful.

- Purpose of use
- Using it to calculate the area of a property based on perimeter measurements, then convert to acres.

- Purpose of use
- Calculate turf in front yard. Excellent. For triangular plots, use a very small dimension for one side.

- Purpose of use
- working out the area of small front garden to be turfed
- Comment/Request
- thankyou

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