Question

Erin is going to paint a wall in her house. She needs to find the area of the wall so she knows how much paint to purchase. What is the area of her wall? House dimensions: 12ft high to middle of ceiling. Wall 7 ft on lowest part x 15 ft wide.

Answer 1

Answer:

idk really know im bored

Step-by-step explanation:

Answer 2

Answer: $142.5\ ft^2$

Step-by-step explanation:

The figure is attached (which is based on the description given)

Notice that you can divide it into two figures: a rectangle and a triangle.

The area of a rectangle can be found with this formula:

$A_r=lw$

Where "l" is the length and "w" is the width.

In this case:

$l=15\ ft\\w=7\ ft$

Therefore, the area of the rectangle is:

$A_r=(15\ ft)(7\ ft)\\\\A_r=105\ ft^2$

The area of a triangle  can be calculated with the following formula:

$A_t=\frac{bh}{2}$

Where "b" is the base and "h" is the height.

In this case, you can identify that:

$b=15\ ft\\h=12\ ft-7\ ft=5\ ft$

Therefore, substituting values and evaluating, you get:

$A_t=\frac{(15\ ft)(5\ ft)}{2}\\\\A_t=37.5\ ft^2$

Finally, you must add the areas calculated above, in order to find the area of the wall. This is:

$A_w=105\ ft^2+37.5\ ft^2\\\\A_w=142.5\ ft^2$