Area of Rectangle
Area of Rectangle
A rectangle is a four sided figure with pair of opposite parallel to each other and each angle is right angle. The adjacent sides are not equal. and are considered as length and breadth.
Area of Rectangle = Length X Breadth
Illustration: Find the area of a rectangle having length 5 cm and breadth 4 cm.
Solution: Length = 5cm and Breadth = 4 cm
Area = Length X breadth = 5 X 4 = 20 sq cm.
Illustration: Given that the area of rectangle is 75 sq cm. if one side is 5 cm find the other side.
Solution: One side of the rectangle = 5cm. Let the other side of the rectangle = y cm
Area of rectangle = Length X breadth = 5 X y sq cm
According to the question: Area of rectangle = 75 sq cm OR 5 X y = 75 sq cm
Hence the other side = 15 cm
Illustration: Find the area of a rectangle having length 4. 5 cm and breadth 3.5 cm.
Solution: Length = 4.5cm and Breadth = 3.5 cm
Area = Length X breadth = 4.5 X 3.5 = 15.75 sq cm
Illustration: Find the area of a rectangle having length3.9 cm and breadth 13 cm.
Solution: Length =3.9cm and Breadth = 13 cm
Area = Length X breadth = 3.9 X 13 = 50.7sq cm
The area of plastic sheet is 300 sq . cm and its length is 30 cm. what is the breadth of the plastic sheet ? | |||
| Right Option : A | |||
| View Explanation | |||
Vineet wants to polish the floor of a room which is 140 cm long and 120 cm wide . The charges for polishing the floor is Rs. 52 per square metre. What will be the cost of polishing the floor of the room ? | |||
| Right Option : A | |||
| View Explanation | |||
Mohit is having a rectangular piece of metal sheet whose area is 175 sq cm and the width of sheet is 7 cm . what is the length of metal sheet ? | |||
| Right Option : A | |||
| View Explanation | |||
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