Question

A circular piece of fabric has a radius of 1.2 ft. The fabric sells for $5.40 per ft². What is the total cost of the circular piece of fabric? Use 3.14 for pi.

A 6.48
B 20.35
C 24.42
D 40.69

Answer 1

radius, r = 1.2ft
price = $5.40 per ft^2

Area = πr² = 3.14×1.2² = 4.5216 ft²
cost = 4.5216×5.40 = $24.42

Answer 2

Answer: The correct answer is 24.42

Explanation:

Radius, r = 1.2ft

Price = $5.40 per ft^2

Area = πr² = 3.14×1.2² = 4.5216 ft²

Cost = 4.5216×5.40 = $24.42

I hope this helps!