Aconcert hall is in the shape of a rectangle. its floor has a length of (x + 6) meters and a width of (2x - 3) meters. write a simplified expression that represents the area of the floor of the concert hall, in square meters?

Step-by-step explanation:

Let

L-----> the length of the concert hall

W----> the width of the concert hall

we know that

The area of a rectangle ( concert hall) is equal to

we have

substitute the values

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step-by-step explanation:

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.