Final answer:
The area of the safety valve disk with a radius of 1.75 in. is approximately 9.62 square inches.
Step-by-step explanation:
The area of a safety valve disk can be calculated using the formula for the area of a circle, which is A = πr^2. Given that the radius of the valve disk is 1.75 in., we can substitute this value into the formula to find the area:
A = π(1.75)^2 = 9.62 in^2
Therefore, the area of the safety valve disk is approximately 9.62 square inches.