TRIGONOMETRY: How can I solve the following problem (please provide calculations and an explanation)?

Science & Mathematics by Anonymous 2018-07-16 03:04:36

Social Science

4 answers

Problem: Find the angle of inclination of a ramp which rises for 80cm and is 200cm long. I am stuck. I have been getting something around 21.8 degrees as an angle, but my teacher says the answer Is 23.58 degrees. Please help :(

Anonymous

You have been using the tangent ratio instead of the sine ratio which is sin^-1(80/200) = 23.58 degrees rounded to two decimal places
Anonymous

sin^-1( 80/200) =sin^-1(.4) = 23.578 degrees.
Anonymous

but you are correct....now is this the same problem as the teacher is using ?
Anonymous

R