Pls me with 12 and the bottom one (show work for ) + lots of !

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

How do i do this? i don’t understand

Secant be and cf intersect at point d inside a what is the measure of cde