A squared + B squared = 9 squared? (read info)
I've been stuck on this for hours! mabye im doing it wrong. anywayy, this is the word problem: the diagram below shows a truck with a ramp. the ramp measures 9m in length and when the ramp is extended from the truck to the ground, it's meets the ground at a 10 degree angle. how many meters off the grounds the end of the ramp where it attached to the truck?