Question

Use trigonometry please

Answer 1

i) 3.81 metres

ii) 17.5

Explanation:

i) use the pythagorean theorem (a^2+b^2=c^2)

ii) we know 2 side lengths and from the angle the ramp makes with the ground, those side lengths are the opposite and hypotenuse. You can now use the arc sine of 1.2/4 to get the angle.