Paul designed a reverse curve section of a circular model train track as shown below. 40°
6.5 in.
다
7 in.
45°
The approximate length of the reverse curve section is
inches

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?