If the diagonal of a rectangle is 10cm long and its perimeter is 28 cm. find the area of the rectangle.

Rectangle Shape a = length side a b = length side b p = q = diagonals P = perimeter A = area √ = square root Calculator Use Use this calculator if you know 2 values for the rectangle, including 1 side length, along with area, perimeter or diagonals and you can calculate the other 3 rectangle variables. A Units: Note that units of length are shown for convenience. They do not affect the calculations. The units are in place to give an indication of the order of the calculated results such as ft, ft 2 or ft 3. Any other base unit can be substituted. Rectangle Formulas Area of a rectangle: A = ab Perimeter of a rectangle: P = 2a + 2b Polygon diagonals of a rectangle: p = q = √(a 2 + b 2) Rectangle Calculations • Calculate A, P, p | Given a, b Given sides lengths a and b calculate area, perimeter and diagonals • A = ab • P = 2a + 2b • p = q = √(a 2 + b 2) • Calculate P, p, b | Given A, a Given area and side length a calculate perimeter, diagonals and side b • b = A / a • P = 2a + 2b • p = q = √(a 2 + b 2) • Calculate P, p, a | Given A, b Given area and side length b calculate perimeter, diagonals and side a • a = A / b • P = 2a + 2b • p = q = √(a 2 + b 2) • Calculate A, p, b | Given P, a Given perimeter and side length a calculate area, diagonals and side b • b = (P - 2a) / 2 • A = ab • p = q = √(a 2 + b 2) • Calculate A, p, a | Given P, b Given perimeter and side length b calculate area, diagonals and side a • a = (P - 2b) / 2 • A = ab • p = q = √(a 2 + b 2) • Calculate A, P, ...

SOLUTION: Please help me solve this question: The diagonal of a rectangle are 10cm long. They intersect at an angle of 120 degrees. Make a sketch of the rectangle. Use trigonometry to calcul SOLUTION: Please help me solve this question: The diagonal of a rectangle are 10cm long. They intersect at an angle of 120 degrees. Make a sketch of the rectangle. Use trigonometry to calcul You can They also intersect at 60 degrees. This makes four isosceles triangles having non-base sides of 5 cm. each. If you focus on the 120 degree isosceles, its equal base angles each are 30 degrees. Now, focus on just ONE half of the rectangle and the triangle formed as half the rectangle. This is a right triangle of hypotenuse 10 cm, and angles are 30, 60, 90. This right triangle is theoretically half of an equilateral triangle. The short side is cm. The long side, all it a, is related as . Solve for a. Now, having the long side a and short side 5, you can find perimeter: .

Variables Used Perimeter of Rectangle - (Measured in Meter) - Perimeter of Rectangle is the total length of all the boundary lines of the Rectangle. Length of Rectangle - (Measured in Meter) - Length of Rectangle is any one of the pair of parallel sides which are longer than the remaining pair of parallel sides. Diagonal of Rectangle - (Measured in Meter) - Diagonal of Rectangle is the length of the line joining any pair of opposite vertices of the Rectangle. What is a Rectangle? A Rectangle is a two dimensional geometric shape having four sides and four corners. The four sides are in two pairs, in which each pair of lines are equal in length and parallel to each other. And adjacent sides are perpendicular to each other. In general a 2D shape with four boundary edges are called quadrilaterals. So a rectangle is a quadrilateral in which each corner is right angle. How to Calculate Perimeter of Rectangle given Diagonal and Length? Perimeter of Rectangle given Diagonal and Length calculator uses Perimeter of Rectangle = 2*( Length of Rectangle+ sqrt( Diagonal of Rectangle^2- Length of Rectangle^2)) to calculate the Perimeter of Rectangle, Perimeter of Rectangle given Diagonal and Length formula is defined as the total length of all the boundary lines of the Rectangle, and calculated using diagonal and length of the Rectangle. Perimeter of Rectangle is denoted by P symbol. How to calculate Perimeter of Rectangle given Diagonal and Length using this online calculator? To use th...

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