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if the perimeter of rectangle is 390 cm and the length of is 30 cm find the breadth also and the area |
Answer» Required Answer :• Perimeter of the Rectangle = 390 cm • Length of the Rectangle = 30 cm • Breadth of the Rectangle • Area of the Rectangle • Perimeter of Rectangle = 2 × ( Length + Breadth ) • Area of Rectangle = Length × Breadth To find the Breadth of the Rectangle, we will be using the Formula, Perimeter of Rectangle = 2 × ( Length + Breadth ), so LET's do it! Substituting the VALUES, 390 = 2 × ( 30 + B ) 390 = 60 + 2b Where, b = breadth Now, 390 - 60 = 2b 2b = 330 330 ÷ 2 = 165 ∴ Breadth of the Rectangle is 165 cm. Now we have the Breadth and the Length of the Rectangle, let's find out the Area of the Rectangle then! Area of Rectangle = Length × Breadth Area of Rectangle = 30 × 165 Area of Rectangle = 4950 cm² ∴ Area of the Rectangle is 4950 cm² Final answer : Breadth of the Rectangle is 165 cm and Area of the Rectangle is 4950 cm². __________________________________________Basic Formulas related to Rectangle :Perimeter of Rectangle = 2 × ( Length + Breadth ) Area of Rectangle = Length × Breadth Breadth of Rectangle = Area ÷ Length Length of Rectangle = Area ÷ Breadth ________________________________________ |
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