Question

#7 calculate the area of the colored shape: (image of a blue l - shaped figure with dimensions 3ft, 4ft, 1ft, 1ft) also, there is a table with #1 to #10, where #1: 42 in², #2: 78 yd², #3: 38 m², #4: 79 yd², #5: 66 ft², #6: 87 yd², #7: (empty), #8: 20 m², #9: (empty), #10: 190 yd²

Explanation:

Step1: Find area of outer rectangle

$\text{Area}_1 = 3 \times 4 = 12$ $\text{ft}^2$

Step2: Find area of uncolored square

$\text{Area}_2 = 1 \times 1 = 1$ $\text{ft}^2$

Step3: Subtract uncolored from outer area

$\text{Area}_{\text{colored}} = 12 - 1$

Answer:

$11$ $\text{ft}^2$