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Completion requirements
- Determine the value of \(r\), to the nearest tenth.
- In his garage, Gerald is hoisting an engine from a pickup truck he is fixing. He hangs the hoist using three rafters on the garage ceiling. He measures the angle the hoist makes at the base to be \(85^\circ\), and he knows the length of chain across the rafters is \(80\) in. He measures one length of chain hanging down from the rafter to the hoist to be \(60\) in. What is the length, to the nearest tenth of an inch, of the other section of chain?
