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A rectangle has a width of 4 units and a length of m units. Write an expression for the area of this rectangle.

What is the area of the same rectangle if m is:

3 units
2.2 units
1/5 units
Could the area of this rectangle be 11 square units? Why or why not?

Respuesta :

Answer:

The area of rectangle is 4*m square unit.

Step-by-step explanation:

  • The area of rectangle is the product of length and width.

So,

        Area of rectangle (A)= length * width

                                         = 4 *m sq. unit

  • If, m=3 units

              Area= 4*3 square unit.

                     = 12  square unit.

  • m= 2.2 units

              Area= 4*2.2 square unit.  

                     =8.8 square unit.

  • m= (1/5) units

                Area= [tex]\frac{4}{5}[/tex] square unit.

                       = 0.8 square unit.    

  • For the rectangle' area to be 11 square units,

                       m= [tex]\frac{Area}{4}[/tex] unit

                          = [tex]\frac{11}{4}[/tex] unit

                          =2.75 unit

  • If m= 2.75 unit, the rectangle can have the area of 11 square units.

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