How To Find The Length And Width When Given The Area How To Calcula To find the width of a rectangle given perimeter (16 in) and length (5 in): p(perimeter) = 2 × l (length) 2 × w (width) the answer is: width of this rectangle is three inches. if you already know the area of a rectangle but miss the width or length, this calculator is the right tool for you. 2. let the length of the rectangle be l l and the width be w w. we know the area of the rectangle is a = lw (1) (1) a = l w. now it is given that l w = 241 625 ⇒ l = 241 625w (2) (2) l w = 241 625 ⇒ l = 241 625 w. now substituting (2) ( 2) in (1) ( 1), we have, a = 241 625w2 = 1500 a = 241 625 w 2 = 1500. w = 1500 × 625 241− −−−−.
How To Calculate Area With Length And Width Haiper Write the length and width next to each other. in this example, the length is 5 cm and the width is 4 cm. 4. multiply the length times the width. your length is 5 cm and your width is 4 cm, so you should plug them into the equation a = l * w to find the area. [7] a = 4 cm * 5 cm. A sector of a circle is essentially a proportion of the circle that is enclosed by two radii and an arc. given a radius and an angle, the area of a sector can be calculated by multiplying the area of the entire circle by a ratio of the known angle to 360° or 2π radians, as shown in the following equation: area =. θ. 360. Do you need to find the width and length of a rectangle given its area or perimeter? use symbolab's free rectangle width & length calculator to get the answer in a few seconds. just enter the known values and let symbolab do the rest. you can also explore other algebra calculators on symbolab's website. Online calculator to calculate the dimensions (length and width) of a rectangle given the area a and perimeter p of the rectangle. formula for area and perimeter of rectangle. the formulas for the perimeter p and the area a of the rectangle are used to write equations as follows: p = 2 × l 2 × w a = l × w.