This math question i am confused my teacher gave me the formula 400= 2•pi•r
pi= 3.14 if u were wondering. you!

Plz i want answer and i would appreciate it is is a b c or d

In djkl, side jk measures 10.6 inches, side kl measures 7 inches, and side jl measures 5 inches. based on the information that is provided, which could be a correct set of angle measures for these sides? angle j = 23.2°, angle k = 33.5°, angle l = 23.2° angle j = 23.2°, angle k = 33.5°, angle l = 123.2° angle j = 123.2°, angle k = 23.2°, angle l = 33.5° angle j = 33.5°, angle k = 23.2°, angle l = 123.2°

What is the equivalent fraction for the following fraction using 5 as the multiplier? 1/2