Brad built a snowboarding ramp with a height of 3.5 feet and an 18° incline. What is the length of the ramp?
1 Answer
Jan 28, 2018
Explanation:
#"consider the right triangle with "h=3.5" and x the "#
#" length of the ramp being the hypotenuse"#
#"then using the "color(blue)"trigonometric ratio"#
#•color(white)(x)sintheta ="opposite"/"hypotenuse"#
#"here opposite"=3.5" and "theta=18^@#
#rArrsin18^@=3.5/x#
#rArrx xxsin18^@=3.5#
#rArrx=3.5/(sin18^@)~~11.33" feet to 2 decimal places"#
