Radius of the circle

Calculate the radius of the circle whose length is 107 cm larger than its diameter

Result

r =  24.981 cm

Solution:

2π r=107+D 2π r=107+2 r  r=107/(2π2)=107/(2 3.14162)24.9814=24.981  cm 2 \pi \cdot \ r = 107 + D \ \\ 2 \pi \cdot \ r = 107 + 2 \cdot \ r \ \\ \ \\ r = 107 / (2 \pi-2) = 107 / (2 \cdot \ 3.1416-2) \doteq 24.9814 = 24.981 \ \text { cm }







Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




Following knowledge from mathematics are needed to solve this word math problem:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?