Question

What does a 72 degree angle look like?

Answer 1

Use a protractor, or draw a picture using known angles

Explanation:

1. Draw a graph. The Y axis is at a 90 degree angle to the x axis
   graph{ [-1, 10, -1, 5]}
2. half of a 90 degree angle is a 45 degree angle
   graph{x [-1, 10, -1, 5]}
3. halfway between a 90 degree angle and a 45 degree angle is a 67.5 degree angle graph{2x [-1, 10, -1, 5]}
4. 72 degrees should be slightly above (steeper than) this angle

You can also use a protractor for more accurate measurement.

And, Here is the accurate graph for `72^@` angle in graph.

graph{y= (tan (2pi/5))x [-14.13, 17.9, -6.65, 9.37]}

Just graph the equation `y = (tan ((2pi)/5))x` to get the result. The angle made by the graph on the positive side of `x`-axis is `72^@`.