# Rectangle - area, perimeter

The area of a rectangular field is equal to 300 square meters. Its perimeter is equal to 70 meters. Find the length and width of this rectangle.

Result

a =  20 m
b =  15 m

#### Solution:  Checkout calculation with our calculator of quadratic equations. Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! #### To solve this example are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation? Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Next similar examples:

1. Interesting property Plot a rectangular shape has the interesting property that circumference in meters and the area in square meters are the same numbers. What are the dimensions of the rectangle?
2. Garden The garden has a rectangular shape and has a circumference of 130 m and area 800.25 m2. Calculate the dimensions of the garden.
3. Rectangle - sides What is the perimeter of a rectangle with area 266 cm2 if length of the shorter side is 5 cm shorter than the length of the longer side?
4. Rectangle The rectangle area is 182 dm2, its base is 14 dm. How long is the other side? Calculate its perimeter.
5. Rectangle Calculate area of the rectangle if its length is 12 cm longer than its width and length is equal to the square of its width. Quadratic equation ? has roots x1 = 80 and x2 = 78. Calculate the coefficients b and c.
7. Square root 2 If the square root of 3m2 +22 and -x = 0, and x=7, what is m?
8. Solve 3 Solve quadratic equation: (6n+1) (4n-1) = 3n2
9. Equation Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
10. Discriminant Determine the discriminant of the equation: ?
11. Theorem prove We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
12. Roots Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ? Find the roots of the quadratic equation: 3x2-4x + (-4) = 0. Solve combinatorics equation: V(2, x+8)=72 Find variable P: PP plus P x P plus P = 160 Solve this equation: x + 5/x - 6 = 4/11 If a2-3a+1=0, find (i)a2+1/a2 (ii) a3+1/a3