Trapezoid Area Formula Trapezoid Area Formula We are going to Discuss about Formula for Area of a Rectangle. What is Rectangle: Rectangle is a Figure which Consists 4 Right angles, so total of angles in a rectangle is 360 degree and opposites sides are of Equal Length in a Rectangle The Area Of A Rectangle Formula: Suppose a Rectangle with sides Width (b) and Length (l) Then area of rectangle will be Area of Rectangle = width*length here W = Width, L = Length Rectangle: Area = Length X Width A = lw Example 1 :- Find the area of a rectangle with Dimensions 20 m long and 30 m wide? Solution: Area =Length * width =20*30, So area of the Rectangle is 600 m2
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Example 2: What is the area of the rectangle with Width 10 and length 12? Solution: By applying Area Formula, Area =L*W Area =12*10, Area =120 Example 3: What is the area of the Rectangle where Dimensions are: (10, 25)? Solution: Here Width=25 Length =10, So Area=10*25 Area =250 Example 4: Find the area of a Rectangular Figure where Dimensions are 12cm, 18cm. Solution: Area =12*18, Area =216 cm2 Example 5: In a Rectangle the Area is 30m2 and Length is 5, calculate the width. Solution: Area=L*W 30=5*W, 30/5=W, 6=W Example 6: In a Rectangular Figure Area of the rectangle is 14 cm2 where width is 7 cm and we have to fin d out the Length ? Solution: 14=7*Length, Length =14/7, Length=2cm Example 7: There are two Rectangles where area of one rectangle is 36cm2 and area of other Rectangle is 15cm2.
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In First Rectangle the Length is 6 and width we have to find out ,In Second rectangle Width is Given 3 and we have to Calculate the Length? Solution: Name the rectangle A and B Rectangle A
Rectangle B
Area =36
Area =15
Length =6
Width=3
Width=?
Length =?
Rectangle A, 36=6*W Width=36/6, Width =36cm Rectangle B, 15=3*L Length =15/3, Length =5 cm Example: The length and breadth of a rectangle are in the ratio of 8:4, its area is 1024cm sq. Find its Length and Breadth. Solution: Suppose length=8x and breadth=4x, 4x*8x=1024 32x=1024cm, X=1024/32 X=32 length=8x=8*32=256`cm breadth=4x=4*32=128cm
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