Question

Find the area 9ft 15ft 11ft ​

Answer 1

Answer:

$A_{total} = 132\ ft^2$

Step-by-step explanation:

Step 1:  Determine the area of the rectangle

$A = l * w$

$A = 9\ ft * 11\ ft$

$A = 99\ ft^2$

Step 2:  Determine the area of the triangles

$A = \frac{h * b}{2}$

$A=\frac{(15\ ft - 9\ ft)*(11\ ft / 2)}{2}$

$A=\frac{6\ ft * 5.5\ ft}{2}$

$A = 16.5\ ft^2$

Since we found only one of the right triangles we need to multiply the area that we got by 2 to get the total triangle area.

$A = 16.5\ ft^2 * 2$

$A = 33\ ft^2$

Step 3:  Determine the total area

$A_{total} = 99\ ft^2 + 33\ ft^2$

$A_{total} = 132\ ft^2$

Answer:  $A_{total} = 132\ ft^2$