What is the angle of an incline with a ratio of 1:25?

[HadanIdea]

Hey,

I need to calculate the angle of an incline,

But they only give me the ratio of 1:25,

The only thing i can think of what to do is,

1 / 25 = 0.04

then 100% x 0.04 = 4 degrees,

Im i right in asuming this?

 

[gneill]

Hey,

I need to calculate the angle of an incline,

But they only give me the ratio of 1:25,

The only thing i can think of what to do is,

1 / 25 = 0.04

then 100% x 0.04 = 4 degrees,

Im i right in asuming this?

The ratio 1:25 implies 1 unite rise (or fall) over 25 units of run (horizontal travel). What trig function does the ratio "rise/run" remind you of?