Question

Question #1bc49

Answer 1

`cos 37 = 0.79863551004 ≈ 0.8`

Explanation:

Method 1:

Using a calculator, set it to degrees mode and put in `cos 37`.

You should get something around `0.8`.

Method 2:

Construct a right triangle to scale with a `37` degree angle. Measure the adjacent and hypotenuse exactly to around 1 decimal place.

Compute the fraction `a/h` and you should get around `0.8` as well.