This is the answer and the steps
Find the area of both first. The sidewalk is 12 * 12 = 144 ft^2, and grass is 10 * 10 = 100 ft^2. Subtract the area of the grass from the sidewalk, 144-100 = 44 ft^2.
4. You're right that the leg labeled

occurs in a 1-to-2 ratio with the hypotenuse, but more to the point, it also occurs with the leg of length 10 in a 1-to-

ratio. In other words,

and so

5. In this kind of triangle, the legs form a 1-to-

ratio with the hypotenuse, so it follows that

.
6. You have

and

mismatched. The larger leg in this kind of triangle has the

scaling factor. So in fact,

, which makes the larger leg

, and the hypotenuse would be

.
Answer:
What is the equation?
Step-by-step explanation: