According to the American National Standards Instatute a whe

According to the American National Standards Instatute, a wheelchair ramp should make an angle of 4.75° with the horizontal, Find the length of the hypotenuse of the ramp that rises 1 meter.

Solution

Here we use the formula

that sin A = height/hypotenues

where A is the base angle that is given 4.75 degree here and also height is given as 1 meter,

so sin 4.75 = 1/hy.

or 0.0828 = 1/hy

or hypotenues=1/0.0828 = 12.08

so length of the hypoteneus of the ramp is 12.08 meter.

Answer