Answer: [tex]1,170ft^2[/tex]
Step-by-step explanation:
We know that the area of the living room can be calculated with the formula for find the area of a rectangle. This formula is:
[tex]A_1=l_1*w_1[/tex]
Where:
[tex]l_1[/tex] is the lenght of the original living room, and [tex]w_1[/tex] is the width of the original living room.
If he creates the addition that causes the dimensions to triple, then the new area of Garrett’s living room is:
[tex]A_2=(3l_1)(3w_1)\\A_2=(3*13ft)(3*10ft)\\A_2=1,170ft^2[/tex]