Final answer:
To calculate the area of Mr. Donohue's patio, we need the total area of the backyard. Without this, we cannot provide the patio area. If we had it, we'd multiply the total area by 1/4 to find the patio's area.
Step-by-step explanation:
To find the area of Mr. Donohue's patio, we need to know the total area of his backyard. Since the patio will cover 1/4 of the yard, if we know the entire area, calculating the patio area would require multiplying the total area by 1/4. Unfortunately, the question does not provide the total area of the yard. Without this information, we cannot provide a numerical answer.
If we had the total area of the yard (let's say it is 'A' square feet), then the area of the patio would be calculated using the formula:
Patio area = Total yard area × 1/4
Patio area = A × 1/4
For example, if the backyard were 800 square feet, then the area of the patio would be:
Patio area = 800 sq ft × 1/4
Patio area = 200 sq ft