Question

1 Keith uses a can opener. Every time he twists the knob on the opener, the opener moves 36° around the can's lid. Which best describes how open the can is after 5 twists?

Answer 1

Let's draw a picture of our problem:

Then, after 5 twists, the opener has been moved

$5\times36=180\text{ degre}es$

Which best describes how open the can is after 5 twists? Answer:​ The can is half open already.