Question

a wheelchair ramp is 4.2 m long .it rises 0.7 m. what is its angle of inclination to the nearest degree

Answer 1

What do you think it is?

Answer 2

Have you drawn this situation? Visualizing it may make the problem solving easier.
The vertical rise is given, as is the length of the ramp.

Which trig function is called for?

Answer 3

Answer:
9.59 degrees

Explanation:
Following the soh in soh cah toa
sin(angle)=
0.7
4.2

angle=arcsin
0.7
4.2

angle=9.59 degress
Final answer: 10 degrees