Mathematics, 24.05.2020 07:59 maltbie1283

If you're good at trig please help mee
(question is about cos rule) and pls show all working out)

The section of a railway track shown is a circular arc that has a chord length of 500m and su tends an angle of 40 degrees at the c enter of the circle. Find the radius ( r ) of the circular arc and the length ( s ) of that arc.

If you're good at trig please help mee (question is about cos rule) and pls show all working out)

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If you're good at trig please help mee
(question is about cos rule) and pls show all working...