Formula for the area of a quarter circle: A = (pi x r^2) / 4
A = (pi x 1^2) / 4
A = 1pi / 4
A = 0.79 square centimeters
Hope this helps! :)
Hi!
10.
This question is basically asking you, 10 is 40% of what number?
10 × 100 / 40 = 25
Fred must do 25 math problems.
12.
Bed & Bath = 40%
Clothing = 0.625 = 62.5%
Appliances = 20%
Electronics = 0.25 = 25%
Least to Greatest: Appliances (20%), Electronics (25%), Bed & Bath (40%), Clothing (62.5%).
The length of that arc is (90/360)·2·π·6 = (1/4)·12·π = 3·π ≈ 9.42 units;
The answer is 48$ hope I helped you