Question

The design for a stage is shown below. The walking ramp, PS, is 12 inches in length. What is the length of the side RP of the stage?

Answer 1

sin(60) = 12/x => x= 12/sin(60)

Answer 2

You can use trigonometry for this.
sin(60) = PS / RP
PS is given as 12 in
so RP = 12 / sin(60) = 13.9 in

Answer 3

Don't bother with sin, cos and tan for this stuff, it's a waste of time...just look up the relationships for special triangles. search 30-60-90 and 45-45-90...

Answer 4

i concur above

Answer 5

i believe trigo is a very important part of maths

Answer 6

Nah, cause they aren't always gonna give you those angles so you needa know how to use sin/cos/tan etc