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how to calculate the triangle?
okay i just need to figure out how to calculate the side of a triangle. i'm in 8th grade, regular math, and i have my math exam tomorrow and i NEED to know this.
my review problem asks:
"a 10 foot ladder is leaning against a house. the base of the ladder is 5 feet from the side of the house. at what height does the ladder touch the house?" we've already been taught this but i kinda have a bad teacher and she didnt help me when i struggled with the topic, so i never really learned the info.
idc if you want to give me the answer to the problem, you can, but all i really need to know is how to solve questions like that in a way an 8th grader can understand.
thank you!
1 Answer
- ?Lv 57 years ago
Hey, are you talking about right-triangles, since the house and ground form a 90 angle?
Then just remember that Leg1 ^2 + Leg2 ^2 = Hypotenuse ^2
So in your case it would be:
5^2 + x^2 = 10^2
25 + x^2 = 100
x^2= 75
x = square root 75 = 5 * square root 3
Good luck for the exam friend, and rest well, math comes from mind, no help memorizing... I just take it to a puzzle and take help from those near me...
