What shapes are made up of straight lines?
Square, pentagon, rectangle, rhombus and triangle are examples of shapes made up only of straight lines.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What shapes are made up of straight lines?
### Input: 
### Response: Square, pentagon, rectangle, rhombus and triangle are examples of shapes made up only of straight lines.