Mathematics
Grade-3-
Easy
Question
One of the following equations can be used to calculate the area (A) of a rectangle that is 5 feet wide and 7 feet long.
- A = 5 x 7
- A = 5 + 7
- A = (2 x 5) + (2 x 7)
- A = 5 + 7 + 5 + 7
Hint:
The formula of the area of the rectangle is 
, where L is the length/base of the rectangle and B is the breadth/width of the rectangle.
The correct answer is: A = 5 x 7
The formula of the area of the rectangle is , where L is the length/base of the rectangle and B is the breadth/width of the rectangle.
Step1: Given length = 
and width =
. Now we have to put it in the formula of the area of the rectangle to get the area.
Area =
Area = 
So, the equation used in finding the area is .
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